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Finding the Fourth Proportional to 435,253.76, 652,805.40 and 115,407.68

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Solution

The fourth proportional to 435,253.76, 652,805.40 and 115,407.68 is: 173,091.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,253.76 : 652,805.40 = 115,407.68 : x
  2. Step 2: Convert to fraction form
    435,253.76/652,805.40 = 115,407.68/x
  3. Step 3: Cross multiply
    435,253.76x = 652,805.40 × 115,407.68
  4. Step 4: Simplify right side
    435,253.76x = 75,338,756,705.47
  5. Step 5: Solve for x
    x = 75,338,756,705.47/435,253.76
  6. Step 6: Final answer
    x = 173,091.57

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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.