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Finding the Fourth Proportional to 88,591,782.90, 132,887,674.35 and 76,474,928.10

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Solution

The fourth proportional to 88,591,782.90, 132,887,674.35 and 76,474,928.10 is: 114,712,392.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,591,782.90 : 132,887,674.35 = 76,474,928.10 : x
  2. Step 2: Convert to fraction form
    88,591,782.90/132,887,674.35 = 76,474,928.10/x
  3. Step 3: Cross multiply
    88,591,782.90x = 132,887,674.35 × 76,474,928.10
  4. Step 4: Simplify right side
    88,591,782.90x = 10,162,575,341,292,462
  5. Step 5: Solve for x
    x = 10,162,575,341,292,462/88,591,782.90
  6. Step 6: Final answer
    x = 114,712,392.15

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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.