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Finding the Fourth Proportional to 169,657.60, 254,486.40 and 156,827.20

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Solution

The fourth proportional to 169,657.60, 254,486.40 and 156,827.20 is: 235,240.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,657.60 : 254,486.40 = 156,827.20 : x
  2. Step 2: Convert to fraction form
    169,657.60/254,486.40 = 156,827.20/x
  3. Step 3: Cross multiply
    169,657.60x = 254,486.40 × 156,827.20
  4. Step 4: Simplify right side
    169,657.60x = 39,910,389,550.08
  5. Step 5: Solve for x
    x = 39,910,389,550.08/169,657.60
  6. Step 6: Final answer
    x = 235,240.80

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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.