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Finding the Fourth Proportional to 173,959.60, 260,939.40 and 90,842.80

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Solution

The fourth proportional to 173,959.60, 260,939.40 and 90,842.80 is: 136,264.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,959.60 : 260,939.40 = 90,842.80 : x
  2. Step 2: Convert to fraction form
    173,959.60/260,939.40 = 90,842.80/x
  3. Step 3: Cross multiply
    173,959.60x = 260,939.40 × 90,842.80
  4. Step 4: Simplify right side
    173,959.60x = 23,704,465,726.32
  5. Step 5: Solve for x
    x = 23,704,465,726.32/173,959.60
  6. Step 6: Final answer
    x = 136,264.20

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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.