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Finding the Fourth Proportional to 216,648.12, 324,852.12 and 88,654.32

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Solution

The fourth proportional to 216,648.12, 324,852.12 and 88,654.32 is: 132,932.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,648.12 : 324,852.12 = 88,654.32 : x
  2. Step 2: Convert to fraction form
    216,648.12/324,852.12 = 88,654.32/x
  3. Step 3: Cross multiply
    216,648.12x = 324,852.12 × 88,654.32
  4. Step 4: Simplify right side
    216,648.12x = 28,799,543,799.16
  5. Step 5: Solve for x
    x = 28,799,543,799.16/216,648.12
  6. Step 6: Final answer
    x = 132,932.35

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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.