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Finding the Fourth Proportional to 169,325.78, 254,030.91 and 119,503.20

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Solution

The fourth proportional to 169,325.78, 254,030.91 and 119,503.20 is: 179,284.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,325.78 : 254,030.91 = 119,503.20 : x
  2. Step 2: Convert to fraction form
    169,325.78/254,030.91 = 119,503.20/x
  3. Step 3: Cross multiply
    169,325.78x = 254,030.91 × 119,503.20
  4. Step 4: Simplify right side
    169,325.78x = 30,357,506,046.40
  5. Step 5: Solve for x
    x = 30,357,506,046.40/169,325.78
  6. Step 6: Final answer
    x = 179,284.61

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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.