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Finding the Fourth Proportional to 220,863.40, 304,783.18 and 134,966.01

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Solution

The fourth proportional to 220,863.40, 304,783.18 and 134,966.01 is: 186,248.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,863.40 : 304,783.18 = 134,966.01 : x
  2. Step 2: Convert to fraction form
    220,863.40/304,783.18 = 134,966.01/x
  3. Step 3: Cross multiply
    220,863.40x = 304,783.18 × 134,966.01
  4. Step 4: Simplify right side
    220,863.40x = 41,135,369,719.71
  5. Step 5: Solve for x
    x = 41,135,369,719.71/220,863.40
  6. Step 6: Final answer
    x = 186,248.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.