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Finding the Fourth Proportional to 94,062.78, 129,806.28 and 51,621.24

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Solution

The fourth proportional to 94,062.78, 129,806.28 and 51,621.24 is: 71,237.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,062.78 : 129,806.28 = 51,621.24 : x
  2. Step 2: Convert to fraction form
    94,062.78/129,806.28 = 51,621.24/x
  3. Step 3: Cross multiply
    94,062.78x = 129,806.28 × 51,621.24
  4. Step 4: Simplify right side
    94,062.78x = 6,700,761,133.39
  5. Step 5: Solve for x
    x = 6,700,761,133.39/94,062.78
  6. Step 6: Final answer
    x = 71,237.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.