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Finding the Fourth Proportional to 100,902.60, 151,353.90 and 27,030.60

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Solution

The fourth proportional to 100,902.60, 151,353.90 and 27,030.60 is: 40,545.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,902.60 : 151,353.90 = 27,030.60 : x
  2. Step 2: Convert to fraction form
    100,902.60/151,353.90 = 27,030.60/x
  3. Step 3: Cross multiply
    100,902.60x = 151,353.90 × 27,030.60
  4. Step 4: Simplify right side
    100,902.60x = 4,091,186,729.34
  5. Step 5: Solve for x
    x = 4,091,186,729.34/100,902.60
  6. Step 6: Final answer
    x = 40,545.90

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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.