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Finding the Fourth Proportional to 145,864.06, 218,793.90 and 88,954.68

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Solution

The fourth proportional to 145,864.06, 218,793.90 and 88,954.68 is: 133,430.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,864.06 : 218,793.90 = 88,954.68 : x
  2. Step 2: Convert to fraction form
    145,864.06/218,793.90 = 88,954.68/x
  3. Step 3: Cross multiply
    145,864.06x = 218,793.90 × 88,954.68
  4. Step 4: Simplify right side
    145,864.06x = 19,462,741,360.45
  5. Step 5: Solve for x
    x = 19,462,741,360.45/145,864.06
  6. Step 6: Final answer
    x = 133,430.68

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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.