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Finding the Fourth Proportional to 107,408.66, 148,200.09 and 64,966.28

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Solution

The fourth proportional to 107,408.66, 148,200.09 and 64,966.28 is: 89,639.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,408.66 : 148,200.09 = 64,966.28 : x
  2. Step 2: Convert to fraction form
    107,408.66/148,200.09 = 64,966.28/x
  3. Step 3: Cross multiply
    107,408.66x = 148,200.09 × 64,966.28
  4. Step 4: Simplify right side
    107,408.66x = 9,628,008,542.97
  5. Step 5: Solve for x
    x = 9,628,008,542.97/107,408.66
  6. Step 6: Final answer
    x = 89,639.03

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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.