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Finding the Fourth Proportional to 175,038.70, 262,687.65 and 115,854.70

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Solution

The fourth proportional to 175,038.70, 262,687.65 and 115,854.70 is: 173,867.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,038.70 : 262,687.65 = 115,854.70 : x
  2. Step 2: Convert to fraction form
    175,038.70/262,687.65 = 115,854.70/x
  3. Step 3: Cross multiply
    175,038.70x = 262,687.65 × 115,854.70
  4. Step 4: Simplify right side
    175,038.70x = 30,433,598,884.46
  5. Step 5: Solve for x
    x = 30,433,598,884.46/175,038.70
  6. Step 6: Final answer
    x = 173,867.83

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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.