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Finding the Fourth Proportional to 169,248.88, 254,025.60 and 90,430.48

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Solution

The fourth proportional to 169,248.88, 254,025.60 and 90,430.48 is: 135,727.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,248.88 : 254,025.60 = 90,430.48 : x
  2. Step 2: Convert to fraction form
    169,248.88/254,025.60 = 90,430.48/x
  3. Step 3: Cross multiply
    169,248.88x = 254,025.60 × 90,430.48
  4. Step 4: Simplify right side
    169,248.88x = 22,971,656,940.29
  5. Step 5: Solve for x
    x = 22,971,656,940.29/169,248.88
  6. Step 6: Final answer
    x = 135,727.08

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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.