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Finding the Fourth Proportional to 89,902.95, 134,877.77 and 73,918.83

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Solution

The fourth proportional to 89,902.95, 134,877.77 and 73,918.83 is: 110,897.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,902.95 : 134,877.77 = 73,918.83 : x
  2. Step 2: Convert to fraction form
    89,902.95/134,877.77 = 73,918.83/x
  3. Step 3: Cross multiply
    89,902.95x = 134,877.77 × 73,918.83
  4. Step 4: Simplify right side
    89,902.95x = 9,970,006,951.41
  5. Step 5: Solve for x
    x = 9,970,006,951.41/89,902.95
  6. Step 6: Final answer
    x = 110,897.44

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1.5x scale

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.