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Finding the Fourth Proportional to 88,573,621.20, 132,860,431.80 and 72,417,814.80

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Solution

The fourth proportional to 88,573,621.20, 132,860,431.80 and 72,417,814.80 is: 108,626,722.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,573,621.20 : 132,860,431.80 = 72,417,814.80 : x
  2. Step 2: Convert to fraction form
    88,573,621.20/132,860,431.80 = 72,417,814.80/x
  3. Step 3: Cross multiply
    88,573,621.20x = 132,860,431.80 × 72,417,814.80
  4. Step 4: Simplify right side
    88,573,621.20x = 9,621,462,144,340,430
  5. Step 5: Solve for x
    x = 9,621,462,144,340,430/88,573,621.20
  6. Step 6: Final answer
    x = 108,626,722.20

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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.