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Finding the Fourth Proportional to 61,237.92, 91,864.32 and 45,462.48

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Solution

The fourth proportional to 61,237.92, 91,864.32 and 45,462.48 is: 68,199.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,237.92 : 91,864.32 = 45,462.48 : x
  2. Step 2: Convert to fraction form
    61,237.92/91,864.32 = 45,462.48/x
  3. Step 3: Cross multiply
    61,237.92x = 91,864.32 × 45,462.48
  4. Step 4: Simplify right side
    61,237.92x = 4,176,379,810.71
  5. Step 5: Solve for x
    x = 4,176,379,810.71/61,237.92
  6. Step 6: Final answer
    x = 68,199.24

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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.