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Finding the Fourth Proportional to 147,374.80, 221,056.80 and 42,193.60

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Solution

The fourth proportional to 147,374.80, 221,056.80 and 42,193.60 is: 63,288.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,374.80 : 221,056.80 = 42,193.60 : x
  2. Step 2: Convert to fraction form
    147,374.80/221,056.80 = 42,193.60/x
  3. Step 3: Cross multiply
    147,374.80x = 221,056.80 × 42,193.60
  4. Step 4: Simplify right side
    147,374.80x = 9,327,182,196.48
  5. Step 5: Solve for x
    x = 9,327,182,196.48/147,374.80
  6. Step 6: Final answer
    x = 63,288.85

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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.