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Finding the Fourth Proportional to 114,986.40, 172,676.40 and 62,498.40

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Solution

The fourth proportional to 114,986.40, 172,676.40 and 62,498.40 is: 93,854.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,986.40 : 172,676.40 = 62,498.40 : x
  2. Step 2: Convert to fraction form
    114,986.40/172,676.40 = 62,498.40/x
  3. Step 3: Cross multiply
    114,986.40x = 172,676.40 × 62,498.40
  4. Step 4: Simplify right side
    114,986.40x = 10,791,998,717.76
  5. Step 5: Solve for x
    x = 10,791,998,717.76/114,986.40
  6. Step 6: Final answer
    x = 93,854.57

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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.