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Finding the Fourth Proportional to 64,307.52, 88,685.04 and 44,128.80

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Solution

The fourth proportional to 64,307.52, 88,685.04 and 44,128.80 is: 60,857.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,307.52 : 88,685.04 = 44,128.80 : x
  2. Step 2: Convert to fraction form
    64,307.52/88,685.04 = 44,128.80/x
  3. Step 3: Cross multiply
    64,307.52x = 88,685.04 × 44,128.80
  4. Step 4: Simplify right side
    64,307.52x = 3,913,564,393.15
  5. Step 5: Solve for x
    x = 3,913,564,393.15/64,307.52
  6. Step 6: Final answer
    x = 60,857.03

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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.