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Finding the Fourth Proportional to 150,591.75, 207,812.88 and 86,056.89

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Solution

The fourth proportional to 150,591.75, 207,812.88 and 86,056.89 is: 118,756.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,591.75 : 207,812.88 = 86,056.89 : x
  2. Step 2: Convert to fraction form
    150,591.75/207,812.88 = 86,056.89/x
  3. Step 3: Cross multiply
    150,591.75x = 207,812.88 × 86,056.89
  4. Step 4: Simplify right side
    150,591.75x = 17,883,730,154.74
  5. Step 5: Solve for x
    x = 17,883,730,154.74/150,591.75
  6. Step 6: Final answer
    x = 118,756.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.