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Finding the Fourth Proportional to 94,642.56, 130,564.80 and 66,337.92

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Solution

The fourth proportional to 94,642.56, 130,564.80 and 66,337.92 is: 91,516.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,642.56 : 130,564.80 = 66,337.92 : x
  2. Step 2: Convert to fraction form
    94,642.56/130,564.80 = 66,337.92/x
  3. Step 3: Cross multiply
    94,642.56x = 130,564.80 × 66,337.92
  4. Step 4: Simplify right side
    94,642.56x = 8,661,397,257.22
  5. Step 5: Solve for x
    x = 8,661,397,257.22/94,642.56
  6. Step 6: Final answer
    x = 91,516.94

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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.