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Finding the Fourth Proportional to 137,416.80, 206,040.96 and 58,486.08

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Solution

The fourth proportional to 137,416.80, 206,040.96 and 58,486.08 is: 87,693.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,416.80 : 206,040.96 = 58,486.08 : x
  2. Step 2: Convert to fraction form
    137,416.80/206,040.96 = 58,486.08/x
  3. Step 3: Cross multiply
    137,416.80x = 206,040.96 × 58,486.08
  4. Step 4: Simplify right side
    137,416.80x = 12,050,528,069.84
  5. Step 5: Solve for x
    x = 12,050,528,069.84/137,416.80
  6. Step 6: Final answer
    x = 87,693.27

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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.