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Finding the Fourth Proportional to 137,355.60, 206,056.66 and 47,373.88

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Solution

The fourth proportional to 137,355.60, 206,056.66 and 47,373.88 is: 71,068.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,355.60 : 206,056.66 = 47,373.88 : x
  2. Step 2: Convert to fraction form
    137,355.60/206,056.66 = 47,373.88/x
  3. Step 3: Cross multiply
    137,355.60x = 206,056.66 × 47,373.88
  4. Step 4: Simplify right side
    137,355.60x = 9,761,703,325.65
  5. Step 5: Solve for x
    x = 9,761,703,325.65/137,355.60
  6. Step 6: Final answer
    x = 71,068.84

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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.