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Finding the Fourth Proportional to 99,732,000.40, 149,472,029.40 and 48,503,712.40

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Solution

The fourth proportional to 99,732,000.40, 149,472,029.40 and 48,503,712.40 is: 72,694,303.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,732,000.40 : 149,472,029.40 = 48,503,712.40 : x
  2. Step 2: Convert to fraction form
    99,732,000.40/149,472,029.40 = 48,503,712.40/x
  3. Step 3: Cross multiply
    99,732,000.40x = 149,472,029.40 × 48,503,712.40
  4. Step 4: Simplify right side
    99,732,000.40x = 7,249,948,325,861,945
  5. Step 5: Solve for x
    x = 7,249,948,325,861,945/99,732,000.40
  6. Step 6: Final answer
    x = 72,694,303.70

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1.5x scale

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.