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Finding the Fourth Proportional to 310,621.20, 465,931.80 and 110,948.10

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Solution

The fourth proportional to 310,621.20, 465,931.80 and 110,948.10 is: 166,422.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,621.20 : 465,931.80 = 110,948.10 : x
  2. Step 2: Convert to fraction form
    310,621.20/465,931.80 = 110,948.10/x
  3. Step 3: Cross multiply
    310,621.20x = 465,931.80 × 110,948.10
  4. Step 4: Simplify right side
    310,621.20x = 51,694,247,939.58
  5. Step 5: Solve for x
    x = 51,694,247,939.58/310,621.20
  6. Step 6: Final answer
    x = 166,422.15

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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.