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Finding the Fourth Proportional to 217,073.60, 325,610.40 and 146,214.80

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Solution

The fourth proportional to 217,073.60, 325,610.40 and 146,214.80 is: 219,322.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,073.60 : 325,610.40 = 146,214.80 : x
  2. Step 2: Convert to fraction form
    217,073.60/325,610.40 = 146,214.80/x
  3. Step 3: Cross multiply
    217,073.60x = 325,610.40 × 146,214.80
  4. Step 4: Simplify right side
    217,073.60x = 47,609,059,513.92
  5. Step 5: Solve for x
    x = 47,609,059,513.92/217,073.60
  6. Step 6: Final answer
    x = 219,322.20

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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.