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Finding the Fourth Proportional to 147,219.54, 220,824.59 and 61,875.61

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Solution

The fourth proportional to 147,219.54, 220,824.59 and 61,875.61 is: 92,811.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,219.54 : 220,824.59 = 61,875.61 : x
  2. Step 2: Convert to fraction form
    147,219.54/220,824.59 = 61,875.61/x
  3. Step 3: Cross multiply
    147,219.54x = 220,824.59 × 61,875.61
  4. Step 4: Simplify right side
    147,219.54x = 13,663,656,209.25
  5. Step 5: Solve for x
    x = 13,663,656,209.25/147,219.54
  6. Step 6: Final answer
    x = 92,811.43

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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.