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Finding the Fourth Proportional to 75,065.98, 103,545.93 and 49,572.58

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Solution

The fourth proportional to 75,065.98, 103,545.93 and 49,572.58 is: 68,380.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,065.98 : 103,545.93 = 49,572.58 : x
  2. Step 2: Convert to fraction form
    75,065.98/103,545.93 = 49,572.58/x
  3. Step 3: Cross multiply
    75,065.98x = 103,545.93 × 49,572.58
  4. Step 4: Simplify right side
    75,065.98x = 5,133,038,898.60
  5. Step 5: Solve for x
    x = 5,133,038,898.60/75,065.98
  6. Step 6: Final answer
    x = 68,380.36

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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.