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Finding the Fourth Proportional to 235,523.12, 353,301.15 and 77,862.56

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Solution

The fourth proportional to 235,523.12, 353,301.15 and 77,862.56 is: 116,799.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,523.12 : 353,301.15 = 77,862.56 : x
  2. Step 2: Convert to fraction form
    235,523.12/353,301.15 = 77,862.56/x
  3. Step 3: Cross multiply
    235,523.12x = 353,301.15 × 77,862.56
  4. Step 4: Simplify right side
    235,523.12x = 27,508,931,989.94
  5. Step 5: Solve for x
    x = 27,508,931,989.94/235,523.12
  6. Step 6: Final answer
    x = 116,799.28

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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.