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Finding the Fourth Proportional to 84,296.50, 125,829.80 and 73,655.55

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Solution

The fourth proportional to 84,296.50, 125,829.80 and 73,655.55 is: 109,946.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,296.50 : 125,829.80 = 73,655.55 : x
  2. Step 2: Convert to fraction form
    84,296.50/125,829.80 = 73,655.55/x
  3. Step 3: Cross multiply
    84,296.50x = 125,829.80 × 73,655.55
  4. Step 4: Simplify right side
    84,296.50x = 9,268,063,801.53
  5. Step 5: Solve for x
    x = 9,268,063,801.53/84,296.50
  6. Step 6: Final answer
    x = 109,946.01

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.