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Finding the Fourth Proportional to 91,972.53, 137,860.65 and 52,444.53

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Solution

The fourth proportional to 91,972.53, 137,860.65 and 52,444.53 is: 78,610.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,972.53 : 137,860.65 = 52,444.53 : x
  2. Step 2: Convert to fraction form
    91,972.53/137,860.65 = 52,444.53/x
  3. Step 3: Cross multiply
    91,972.53x = 137,860.65 × 52,444.53
  4. Step 4: Simplify right side
    91,972.53x = 7,230,036,994.74
  5. Step 5: Solve for x
    x = 7,230,036,994.74/91,972.53
  6. Step 6: Final answer
    x = 78,610.83

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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.