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Finding the Fourth Proportional to 225,157.80, 337,627.62 and 91,985.16

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Solution

The fourth proportional to 225,157.80, 337,627.62 and 91,985.16 is: 137,933.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,157.80 : 337,627.62 = 91,985.16 : x
  2. Step 2: Convert to fraction form
    225,157.80/337,627.62 = 91,985.16/x
  3. Step 3: Cross multiply
    225,157.80x = 337,627.62 × 91,985.16
  4. Step 4: Simplify right side
    225,157.80x = 31,056,730,646.12
  5. Step 5: Solve for x
    x = 31,056,730,646.12/225,157.80
  6. Step 6: Final answer
    x = 137,933.18

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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.