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Finding the Fourth Proportional to 68,785.60, 94,835.28 and 44,543.48

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Solution

The fourth proportional to 68,785.60, 94,835.28 and 44,543.48 is: 61,412.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,785.60 : 94,835.28 = 44,543.48 : x
  2. Step 2: Convert to fraction form
    68,785.60/94,835.28 = 44,543.48/x
  3. Step 3: Cross multiply
    68,785.60x = 94,835.28 × 44,543.48
  4. Step 4: Simplify right side
    68,785.60x = 4,224,293,397.97
  5. Step 5: Solve for x
    x = 4,224,293,397.97/68,785.60
  6. Step 6: Final answer
    x = 61,412.47

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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.