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Finding the Fourth Proportional to 125,851.68, 173,678.76 and 69,266.52

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Solution

The fourth proportional to 125,851.68, 173,678.76 and 69,266.52 is: 95,589.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,851.68 : 173,678.76 = 69,266.52 : x
  2. Step 2: Convert to fraction form
    125,851.68/173,678.76 = 69,266.52/x
  3. Step 3: Cross multiply
    125,851.68x = 173,678.76 × 69,266.52
  4. Step 4: Simplify right side
    125,851.68x = 12,030,123,303.12
  5. Step 5: Solve for x
    x = 12,030,123,303.12/125,851.68
  6. Step 6: Final answer
    x = 95,589.69

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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.