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Finding the Fourth Proportional to 89,187,866.60, 133,781,799.90 and 89,187,866.60

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Solution

The fourth proportional to 89,187,866.60, 133,781,799.90 and 89,187,866.60 is: 133,781,799.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,187,866.60 : 133,781,799.90 = 89,187,866.60 : x
  2. Step 2: Convert to fraction form
    89,187,866.60/133,781,799.90 = 89,187,866.60/x
  3. Step 3: Cross multiply
    89,187,866.60x = 133,781,799.90 × 89,187,866.60
  4. Step 4: Simplify right side
    89,187,866.60x = 11,931,713,322,989,094
  5. Step 5: Solve for x
    x = 11,931,713,322,989,094/89,187,866.60
  6. Step 6: Final answer
    x = 133,781,799.90

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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.