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Finding the Fourth Proportional to 316,757.20, 475,036.52 and 103,476.50

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Solution

The fourth proportional to 316,757.20, 475,036.52 and 103,476.50 is: 155,182.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,757.20 : 475,036.52 = 103,476.50 : x
  2. Step 2: Convert to fraction form
    316,757.20/475,036.52 = 103,476.50/x
  3. Step 3: Cross multiply
    316,757.20x = 475,036.52 × 103,476.50
  4. Step 4: Simplify right side
    316,757.20x = 49,155,116,461.78
  5. Step 5: Solve for x
    x = 49,155,116,461.78/316,757.20
  6. Step 6: Final answer
    x = 155,182.32

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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.