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Finding the Fourth Proportional to 150,641.64, 225,687.06 and 70,532.64

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Solution

The fourth proportional to 150,641.64, 225,687.06 and 70,532.64 is: 105,670.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,641.64 : 225,687.06 = 70,532.64 : x
  2. Step 2: Convert to fraction form
    150,641.64/225,687.06 = 70,532.64/x
  3. Step 3: Cross multiply
    150,641.64x = 225,687.06 × 70,532.64
  4. Step 4: Simplify right side
    150,641.64x = 15,918,304,155.64
  5. Step 5: Solve for x
    x = 15,918,304,155.64/150,641.64
  6. Step 6: Final answer
    x = 105,670.01

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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.