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Finding the Fourth Proportional to 159,148.80, 238,204.80 and 123,897.60

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Solution

The fourth proportional to 159,148.80, 238,204.80 and 123,897.60 is: 185,442.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,148.80 : 238,204.80 = 123,897.60 : x
  2. Step 2: Convert to fraction form
    159,148.80/238,204.80 = 123,897.60/x
  3. Step 3: Cross multiply
    159,148.80x = 238,204.80 × 123,897.60
  4. Step 4: Simplify right side
    159,148.80x = 29,513,003,028.48
  5. Step 5: Solve for x
    x = 29,513,003,028.48/159,148.80
  6. Step 6: Final answer
    x = 185,442.82

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1.5x scale

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.