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Finding the Fourth Proportional to 113,448.68, 156,568.42 and 63,148.52

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Solution

The fourth proportional to 113,448.68, 156,568.42 and 63,148.52 is: 87,150.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,448.68 : 156,568.42 = 63,148.52 : x
  2. Step 2: Convert to fraction form
    113,448.68/156,568.42 = 63,148.52/x
  3. Step 3: Cross multiply
    113,448.68x = 156,568.42 × 63,148.52
  4. Step 4: Simplify right side
    113,448.68x = 9,887,064,001.74
  5. Step 5: Solve for x
    x = 9,887,064,001.74/113,448.68
  6. Step 6: Final answer
    x = 87,150.10

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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.