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Finding the Fourth Proportional to 77,492.60, 116,127.89 and 44,143.80

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Solution

The fourth proportional to 77,492.60, 116,127.89 and 44,143.80 is: 66,152.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,492.60 : 116,127.89 = 44,143.80 : x
  2. Step 2: Convert to fraction form
    77,492.60/116,127.89 = 44,143.80/x
  3. Step 3: Cross multiply
    77,492.60x = 116,127.89 × 44,143.80
  4. Step 4: Simplify right side
    77,492.60x = 5,126,326,761.45
  5. Step 5: Solve for x
    x = 5,126,326,761.45/77,492.60
  6. Step 6: Final answer
    x = 66,152.47

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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.