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Finding the Fourth Proportional to 136,707.75, 205,152.75 and 52,537.41

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Solution

The fourth proportional to 136,707.75, 205,152.75 and 52,537.41 is: 78,841.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,707.75 : 205,152.75 = 52,537.41 : x
  2. Step 2: Convert to fraction form
    136,707.75/205,152.75 = 52,537.41/x
  3. Step 3: Cross multiply
    136,707.75x = 205,152.75 × 52,537.41
  4. Step 4: Simplify right side
    136,707.75x = 10,778,194,139.38
  5. Step 5: Solve for x
    x = 10,778,194,139.38/136,707.75
  6. Step 6: Final answer
    x = 78,841.13

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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.