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Finding the Fourth Proportional to 435,225.76, 652,763.40 and 115,379.74

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Solution

The fourth proportional to 435,225.76, 652,763.40 and 115,379.74 is: 173,049.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,225.76 : 652,763.40 = 115,379.74 : x
  2. Step 2: Convert to fraction form
    435,225.76/652,763.40 = 115,379.74/x
  3. Step 3: Cross multiply
    435,225.76x = 652,763.40 × 115,379.74
  4. Step 4: Simplify right side
    435,225.76x = 75,315,671,373.52
  5. Step 5: Solve for x
    x = 75,315,671,373.52/435,225.76
  6. Step 6: Final answer
    x = 173,049.66

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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.