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Finding the Fourth Proportional to 100,818.75, 151,228.13 and 35,154.75

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Solution

The fourth proportional to 100,818.75, 151,228.13 and 35,154.75 is: 52,732.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,818.75 : 151,228.13 = 35,154.75 : x
  2. Step 2: Convert to fraction form
    100,818.75/151,228.13 = 35,154.75/x
  3. Step 3: Cross multiply
    100,818.75x = 151,228.13 × 35,154.75
  4. Step 4: Simplify right side
    100,818.75x = 5,316,386,927.34
  5. Step 5: Solve for x
    x = 5,316,386,927.34/100,818.75
  6. Step 6: Final answer
    x = 52,732.13

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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.