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Finding the Fourth Proportional to 152,040.48, 209,799.60 and 88,364.96

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Solution

The fourth proportional to 152,040.48, 209,799.60 and 88,364.96 is: 121,934.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,040.48 : 209,799.60 = 88,364.96 : x
  2. Step 2: Convert to fraction form
    152,040.48/209,799.60 = 88,364.96/x
  3. Step 3: Cross multiply
    152,040.48x = 209,799.60 × 88,364.96
  4. Step 4: Simplify right side
    152,040.48x = 18,538,933,262.02
  5. Step 5: Solve for x
    x = 18,538,933,262.02/152,040.48
  6. Step 6: Final answer
    x = 121,934.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.