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Finding the Fourth Proportional to 124,565.76, 186,917.76 and 50,688

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Solution

The fourth proportional to 124,565.76, 186,917.76 and 50,688 is: 76,060.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,565.76 : 186,917.76 = 50,688 : x
  2. Step 2: Convert to fraction form
    124,565.76/186,917.76 = 50,688/x
  3. Step 3: Cross multiply
    124,565.76x = 186,917.76 × 50,688
  4. Step 4: Simplify right side
    124,565.76x = 9,474,487,418.88
  5. Step 5: Solve for x
    x = 9,474,487,418.88/124,565.76
  6. Step 6: Final answer
    x = 76,060.13

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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.