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Finding the Fourth Proportional to 99,680,006.80, 149,586,883.80 and 34,983,686.80

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Solution

The fourth proportional to 99,680,006.80, 149,586,883.80 and 34,983,686.80 is: 52,499,000.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,680,006.80 : 149,586,883.80 = 34,983,686.80 : x
  2. Step 2: Convert to fraction form
    99,680,006.80/149,586,883.80 = 34,983,686.80/x
  3. Step 3: Cross multiply
    99,680,006.80x = 149,586,883.80 × 34,983,686.80
  4. Step 4: Simplify right side
    99,680,006.80x = 5,233,100,692,247,194
  5. Step 5: Solve for x
    x = 5,233,100,692,247,194/99,680,006.80
  6. Step 6: Final answer
    x = 52,499,000.15

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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.