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Finding the Fourth Proportional to 145,410.60, 218,115.90 and 96,162.60

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Solution

The fourth proportional to 145,410.60, 218,115.90 and 96,162.60 is: 144,243.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,410.60 : 218,115.90 = 96,162.60 : x
  2. Step 2: Convert to fraction form
    145,410.60/218,115.90 = 96,162.60/x
  3. Step 3: Cross multiply
    145,410.60x = 218,115.90 × 96,162.60
  4. Step 4: Simplify right side
    145,410.60x = 20,974,592,045.34
  5. Step 5: Solve for x
    x = 20,974,592,045.34/145,410.60
  6. Step 6: Final answer
    x = 144,243.90

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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.