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Finding the Fourth Proportional to 255,720.68, 352,729.86 and 169,677.80

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Solution

The fourth proportional to 255,720.68, 352,729.86 and 169,677.80 is: 234,046.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,720.68 : 352,729.86 = 169,677.80 : x
  2. Step 2: Convert to fraction form
    255,720.68/352,729.86 = 169,677.80/x
  3. Step 3: Cross multiply
    255,720.68x = 352,729.86 × 169,677.80
  4. Step 4: Simplify right side
    255,720.68x = 59,850,426,639.11
  5. Step 5: Solve for x
    x = 59,850,426,639.11/255,720.68
  6. Step 6: Final answer
    x = 234,046.10

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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.