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Finding the Fourth Proportional to 113,754.46, 156,981.15 and 63,453.46

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Solution

The fourth proportional to 113,754.46, 156,981.15 and 63,453.46 is: 87,565.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,754.46 : 156,981.15 = 63,453.46 : x
  2. Step 2: Convert to fraction form
    113,754.46/156,981.15 = 63,453.46/x
  3. Step 3: Cross multiply
    113,754.46x = 156,981.15 × 63,453.46
  4. Step 4: Simplify right side
    113,754.46x = 9,960,996,020.11
  5. Step 5: Solve for x
    x = 9,960,996,020.11/113,754.46
  6. Step 6: Final answer
    x = 87,565.77

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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.