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Finding the Fourth Proportional to 100,815.65, 151,130.01 and 44,625.81

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Solution

The fourth proportional to 100,815.65, 151,130.01 and 44,625.81 is: 66,897.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,815.65 : 151,130.01 = 44,625.81 : x
  2. Step 2: Convert to fraction form
    100,815.65/151,130.01 = 44,625.81/x
  3. Step 3: Cross multiply
    100,815.65x = 151,130.01 × 44,625.81
  4. Step 4: Simplify right side
    100,815.65x = 6,744,299,594.62
  5. Step 5: Solve for x
    x = 6,744,299,594.62/100,815.65
  6. Step 6: Final answer
    x = 66,897.35

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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.