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Finding the Fourth Proportional to 98,218.60, 146,982.30 and 89,924.20

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Solution

The fourth proportional to 98,218.60, 146,982.30 and 89,924.20 is: 134,569.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,218.60 : 146,982.30 = 89,924.20 : x
  2. Step 2: Convert to fraction form
    98,218.60/146,982.30 = 89,924.20/x
  3. Step 3: Cross multiply
    98,218.60x = 146,982.30 × 89,924.20
  4. Step 4: Simplify right side
    98,218.60x = 13,217,265,741.66
  5. Step 5: Solve for x
    x = 13,217,265,741.66/98,218.60
  6. Step 6: Final answer
    x = 134,569.89

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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.