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Finding the Fourth Proportional to 124,567.76, 186,920.76 and 50,690

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Solution

The fourth proportional to 124,567.76, 186,920.76 and 50,690 is: 76,063.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,567.76 : 186,920.76 = 50,690 : x
  2. Step 2: Convert to fraction form
    124,567.76/186,920.76 = 50,690/x
  3. Step 3: Cross multiply
    124,567.76x = 186,920.76 × 50,690
  4. Step 4: Simplify right side
    124,567.76x = 9,475,013,324.40
  5. Step 5: Solve for x
    x = 9,475,013,324.40/124,567.76
  6. Step 6: Final answer
    x = 76,063.13

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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.