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Finding the Fourth Proportional to 100,647.90, 151,036.65 and 58,527.90

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Solution

The fourth proportional to 100,647.90, 151,036.65 and 58,527.90 is: 87,829.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,647.90 : 151,036.65 = 58,527.90 : x
  2. Step 2: Convert to fraction form
    100,647.90/151,036.65 = 58,527.90/x
  3. Step 3: Cross multiply
    100,647.90x = 151,036.65 × 58,527.90
  4. Step 4: Simplify right side
    100,647.90x = 8,839,857,947.54
  5. Step 5: Solve for x
    x = 8,839,857,947.54/100,647.90
  6. Step 6: Final answer
    x = 87,829.53

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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.