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Finding the Fourth Proportional to 113,338, 156,406.44 and 63,035.92

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Solution

The fourth proportional to 113,338, 156,406.44 and 63,035.92 is: 86,989.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,338 : 156,406.44 = 63,035.92 : x
  2. Step 2: Convert to fraction form
    113,338/156,406.44 = 63,035.92/x
  3. Step 3: Cross multiply
    113,338x = 156,406.44 × 63,035.92
  4. Step 4: Simplify right side
    113,338x = 9,859,223,839.32
  5. Step 5: Solve for x
    x = 9,859,223,839.32/113,338
  6. Step 6: Final answer
    x = 86,989.57

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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.