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Finding the Fourth Proportional to 123,058.60, 184,587.90 and 121,892.20

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Solution

The fourth proportional to 123,058.60, 184,587.90 and 121,892.20 is: 182,838.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,058.60 : 184,587.90 = 121,892.20 : x
  2. Step 2: Convert to fraction form
    123,058.60/184,587.90 = 121,892.20/x
  3. Step 3: Cross multiply
    123,058.60x = 184,587.90 × 121,892.20
  4. Step 4: Simplify right side
    123,058.60x = 22,499,825,224.38
  5. Step 5: Solve for x
    x = 22,499,825,224.38/123,058.60
  6. Step 6: Final answer
    x = 182,838.30

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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.