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Finding the Fourth Proportional to 247,927.68, 371,681.92 and 107,580.80

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Solution

The fourth proportional to 247,927.68, 371,681.92 and 107,580.80 is: 161,280.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,927.68 : 371,681.92 = 107,580.80 : x
  2. Step 2: Convert to fraction form
    247,927.68/371,681.92 = 107,580.80/x
  3. Step 3: Cross multiply
    247,927.68x = 371,681.92 × 107,580.80
  4. Step 4: Simplify right side
    247,927.68x = 39,985,838,299.14
  5. Step 5: Solve for x
    x = 39,985,838,299.14/247,927.68
  6. Step 6: Final answer
    x = 161,280.25

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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.