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Finding the Fourth Proportional to 91,703,616.40, 137,555,424.60 and 88,176,422.80

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Solution

The fourth proportional to 91,703,616.40, 137,555,424.60 and 88,176,422.80 is: 132,264,634.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,703,616.40 : 137,555,424.60 = 88,176,422.80 : x
  2. Step 2: Convert to fraction form
    91,703,616.40/137,555,424.60 = 88,176,422.80/x
  3. Step 3: Cross multiply
    91,703,616.40x = 137,555,424.60 × 88,176,422.80
  4. Step 4: Simplify right side
    91,703,616.40x = 12,129,145,277,963,120
  5. Step 5: Solve for x
    x = 12,129,145,277,963,120/91,703,616.40
  6. Step 6: Final answer
    x = 132,264,634.20

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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.