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Finding the Fourth Proportional to 178,030.08, 266,949.34 and 71,360.52

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Solution

The fourth proportional to 178,030.08, 266,949.34 and 71,360.52 is: 107,002.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,030.08 : 266,949.34 = 71,360.52 : x
  2. Step 2: Convert to fraction form
    178,030.08/266,949.34 = 71,360.52/x
  3. Step 3: Cross multiply
    178,030.08x = 266,949.34 × 71,360.52
  4. Step 4: Simplify right side
    178,030.08x = 19,049,643,716.06
  5. Step 5: Solve for x
    x = 19,049,643,716.06/178,030.08
  6. Step 6: Final answer
    x = 107,002.39

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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.