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Finding the Fourth Proportional to 435,255.76, 652,808.40 and 115,409.68

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Solution

The fourth proportional to 435,255.76, 652,808.40 and 115,409.68 is: 173,094.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,255.76 : 652,808.40 = 115,409.68 : x
  2. Step 2: Convert to fraction form
    435,255.76/652,808.40 = 115,409.68/x
  3. Step 3: Cross multiply
    435,255.76x = 652,808.40 × 115,409.68
  4. Step 4: Simplify right side
    435,255.76x = 75,340,408,545.31
  5. Step 5: Solve for x
    x = 75,340,408,545.31/435,255.76
  6. Step 6: Final answer
    x = 173,094.57

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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.