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Finding the Fourth Proportional to 76,692,658.24, 105,836,545.01 and 43,655,034.80

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Solution

The fourth proportional to 76,692,658.24, 105,836,545.01 and 43,655,034.80 is: 60,244,333.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,692,658.24 : 105,836,545.01 = 43,655,034.80 : x
  2. Step 2: Convert to fraction form
    76,692,658.24/105,836,545.01 = 43,655,034.80/x
  3. Step 3: Cross multiply
    76,692,658.24x = 105,836,545.01 × 43,655,034.80
  4. Step 4: Simplify right side
    76,692,658.24x = 4,620,298,055,301,715
  5. Step 5: Solve for x
    x = 4,620,298,055,301,715/76,692,658.24
  6. Step 6: Final answer
    x = 60,244,333.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.