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Finding the Fourth Proportional to 121,298.20, 181,914.90 and 37,058.20

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Solution

The fourth proportional to 121,298.20, 181,914.90 and 37,058.20 is: 55,577.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,298.20 : 181,914.90 = 37,058.20 : x
  2. Step 2: Convert to fraction form
    121,298.20/181,914.90 = 37,058.20/x
  3. Step 3: Cross multiply
    121,298.20x = 181,914.90 × 37,058.20
  4. Step 4: Simplify right side
    121,298.20x = 6,741,438,747.18
  5. Step 5: Solve for x
    x = 6,741,438,747.18/121,298.20
  6. Step 6: Final answer
    x = 55,577.40

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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.