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Finding the Fourth Proportional to 121,126.88, 181,302.24 and 64,826.24

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Solution

The fourth proportional to 121,126.88, 181,302.24 and 64,826.24 is: 97,031.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,126.88 : 181,302.24 = 64,826.24 : x
  2. Step 2: Convert to fraction form
    121,126.88/181,302.24 = 64,826.24/x
  3. Step 3: Cross multiply
    121,126.88x = 181,302.24 × 64,826.24
  4. Step 4: Simplify right side
    121,126.88x = 11,753,142,522.78
  5. Step 5: Solve for x
    x = 11,753,142,522.78/121,126.88
  6. Step 6: Final answer
    x = 97,031.66

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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.