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Finding the Fourth Proportional to 113,798.76, 157,042.14 and 63,497.76

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Solution

The fourth proportional to 113,798.76, 157,042.14 and 63,497.76 is: 87,626.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,798.76 : 157,042.14 = 63,497.76 : x
  2. Step 2: Convert to fraction form
    113,798.76/157,042.14 = 63,497.76/x
  3. Step 3: Cross multiply
    113,798.76x = 157,042.14 × 63,497.76
  4. Step 4: Simplify right side
    113,798.76x = 9,971,824,115.61
  5. Step 5: Solve for x
    x = 9,971,824,115.61/113,798.76
  6. Step 6: Final answer
    x = 87,626.83

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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.