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Finding the Fourth Proportional to 91,864,597.80, 137,796,896.70 and 88,746,810.60

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Solution

The fourth proportional to 91,864,597.80, 137,796,896.70 and 88,746,810.60 is: 133,120,215.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,864,597.80 : 137,796,896.70 = 88,746,810.60 : x
  2. Step 2: Convert to fraction form
    91,864,597.80/137,796,896.70 = 88,746,810.60/x
  3. Step 3: Cross multiply
    91,864,597.80x = 137,796,896.70 × 88,746,810.60
  4. Step 4: Simplify right side
    91,864,597.80x = 12,229,035,092,702,664
  5. Step 5: Solve for x
    x = 12,229,035,092,702,664/91,864,597.80
  6. Step 6: Final answer
    x = 133,120,215.90

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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.