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Finding the Fourth Proportional to 316,351.57, 473,931.24 and 156,240.10

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Solution

The fourth proportional to 316,351.57, 473,931.24 and 156,240.10 is: 234,065.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,351.57 : 473,931.24 = 156,240.10 : x
  2. Step 2: Convert to fraction form
    316,351.57/473,931.24 = 156,240.10/x
  3. Step 3: Cross multiply
    316,351.57x = 473,931.24 × 156,240.10
  4. Step 4: Simplify right side
    316,351.57x = 74,047,064,330.72
  5. Step 5: Solve for x
    x = 74,047,064,330.72/316,351.57
  6. Step 6: Final answer
    x = 234,065.74

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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.