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Finding the Fourth Proportional to 124,706.52, 186,952.86 and 45,780.12

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Solution

The fourth proportional to 124,706.52, 186,952.86 and 45,780.12 is: 68,630.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,706.52 : 186,952.86 = 45,780.12 : x
  2. Step 2: Convert to fraction form
    124,706.52/186,952.86 = 45,780.12/x
  3. Step 3: Cross multiply
    124,706.52x = 186,952.86 × 45,780.12
  4. Step 4: Simplify right side
    124,706.52x = 8,558,724,365.14
  5. Step 5: Solve for x
    x = 8,558,724,365.14/124,706.52
  6. Step 6: Final answer
    x = 68,630.93

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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.