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Finding the Fourth Proportional to 60,053.76, 90,112.76 and 38,988.84

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Solution

The fourth proportional to 60,053.76, 90,112.76 and 38,988.84 is: 58,504.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,053.76 : 90,112.76 = 38,988.84 : x
  2. Step 2: Convert to fraction form
    60,053.76/90,112.76 = 38,988.84/x
  3. Step 3: Cross multiply
    60,053.76x = 90,112.76 × 38,988.84
  4. Step 4: Simplify right side
    60,053.76x = 3,513,391,981.60
  5. Step 5: Solve for x
    x = 3,513,391,981.60/60,053.76
  6. Step 6: Final answer
    x = 58,504.11

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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.