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Finding the Fourth Proportional to 150,551.60, 207,788.28 and 86,880.56

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Solution

The fourth proportional to 150,551.60, 207,788.28 and 86,880.56 is: 119,910.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,551.60 : 207,788.28 = 86,880.56 : x
  2. Step 2: Convert to fraction form
    150,551.60/207,788.28 = 86,880.56/x
  3. Step 3: Cross multiply
    150,551.60x = 207,788.28 × 86,880.56
  4. Step 4: Simplify right side
    150,551.60x = 18,052,762,127.84
  5. Step 5: Solve for x
    x = 18,052,762,127.84/150,551.60
  6. Step 6: Final answer
    x = 119,910.80

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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.