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Finding the Fourth Proportional to 99,043,740.80, 148,565,611.20 and 99,043,740.80

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Solution

The fourth proportional to 99,043,740.80, 148,565,611.20 and 99,043,740.80 is: 148,565,611.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,043,740.80 : 148,565,611.20 = 99,043,740.80 : x
  2. Step 2: Convert to fraction form
    99,043,740.80/148,565,611.20 = 99,043,740.80/x
  3. Step 3: Cross multiply
    99,043,740.80x = 148,565,611.20 × 99,043,740.80
  4. Step 4: Simplify right side
    99,043,740.80x = 14,714,493,887,486,376
  5. Step 5: Solve for x
    x = 14,714,493,887,486,376/99,043,740.80
  6. Step 6: Final answer
    x = 148,565,611.20

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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.