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Finding the Fourth Proportional to 96,810.60, 145,302.30 and 83,677.80

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Solution

The fourth proportional to 96,810.60, 145,302.30 and 83,677.80 is: 125,591.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,810.60 : 145,302.30 = 83,677.80 : x
  2. Step 2: Convert to fraction form
    96,810.60/145,302.30 = 83,677.80/x
  3. Step 3: Cross multiply
    96,810.60x = 145,302.30 × 83,677.80
  4. Step 4: Simplify right side
    96,810.60x = 12,158,576,798.94
  5. Step 5: Solve for x
    x = 12,158,576,798.94/96,810.60
  6. Step 6: Final answer
    x = 125,591.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.