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Finding the Fourth Proportional to 52,700.25, 78,926.07 and 45,737.10

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Solution

The fourth proportional to 52,700.25, 78,926.07 and 45,737.10 is: 68,497.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,700.25 : 78,926.07 = 45,737.10 : x
  2. Step 2: Convert to fraction form
    52,700.25/78,926.07 = 45,737.10/x
  3. Step 3: Cross multiply
    52,700.25x = 78,926.07 × 45,737.10
  4. Step 4: Simplify right side
    52,700.25x = 3,609,849,556.20
  5. Step 5: Solve for x
    x = 3,609,849,556.20/52,700.25
  6. Step 6: Final answer
    x = 68,497.77

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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.