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Finding the Fourth Proportional to 136,594.48, 188,502.71 and 75,347.70

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Solution

The fourth proportional to 136,594.48, 188,502.71 and 75,347.70 is: 103,981.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,594.48 : 188,502.71 = 75,347.70 : x
  2. Step 2: Convert to fraction form
    136,594.48/188,502.71 = 75,347.70/x
  3. Step 3: Cross multiply
    136,594.48x = 188,502.71 × 75,347.70
  4. Step 4: Simplify right side
    136,594.48x = 14,203,245,265.53
  5. Step 5: Solve for x
    x = 14,203,245,265.53/136,594.48
  6. Step 6: Final answer
    x = 103,981.11

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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.