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Finding the Fourth Proportional to 84,564,658.60, 126,846,987.90 and 50,552,434.60

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Solution

The fourth proportional to 84,564,658.60, 126,846,987.90 and 50,552,434.60 is: 75,828,651.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,564,658.60 : 126,846,987.90 = 50,552,434.60 : x
  2. Step 2: Convert to fraction form
    84,564,658.60/126,846,987.90 = 50,552,434.60/x
  3. Step 3: Cross multiply
    84,564,658.60x = 126,846,987.90 × 50,552,434.60
  4. Step 4: Simplify right side
    84,564,658.60x = 6,412,424,060,021,742
  5. Step 5: Solve for x
    x = 6,412,424,060,021,742/84,564,658.60
  6. Step 6: Final answer
    x = 75,828,651.90

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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.