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Finding the Fourth Proportional to 158,157.96, 218,503.16 and 132,619.28

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Solution

The fourth proportional to 158,157.96, 218,503.16 and 132,619.28 is: 183,220.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,157.96 : 218,503.16 = 132,619.28 : x
  2. Step 2: Convert to fraction form
    158,157.96/218,503.16 = 132,619.28/x
  3. Step 3: Cross multiply
    158,157.96x = 218,503.16 × 132,619.28
  4. Step 4: Simplify right side
    158,157.96x = 28,977,730,001.31
  5. Step 5: Solve for x
    x = 28,977,730,001.31/158,157.96
  6. Step 6: Final answer
    x = 183,220.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.