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Finding the Fourth Proportional to 220,106,857.80, 330,160,286.70 and 216,705,635.40

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Solution

The fourth proportional to 220,106,857.80, 330,160,286.70 and 216,705,635.40 is: 325,058,453.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,106,857.80 : 330,160,286.70 = 216,705,635.40 : x
  2. Step 2: Convert to fraction form
    220,106,857.80/330,160,286.70 = 216,705,635.40/x
  3. Step 3: Cross multiply
    220,106,857.80x = 330,160,286.70 × 216,705,635.40
  4. Step 4: Simplify right side
    220,106,857.80x = 71,547,594,713,169,672
  5. Step 5: Solve for x
    x = 71,547,594,713,169,672/220,106,857.80
  6. Step 6: Final answer
    x = 325,058,453.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.