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Finding the Fourth Proportional to 106,574.60, 146,982.66 and 64,125.20

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Solution

The fourth proportional to 106,574.60, 146,982.66 and 64,125.20 is: 88,438.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,574.60 : 146,982.66 = 64,125.20 : x
  2. Step 2: Convert to fraction form
    106,574.60/146,982.66 = 64,125.20/x
  3. Step 3: Cross multiply
    106,574.60x = 146,982.66 × 64,125.20
  4. Step 4: Simplify right side
    106,574.60x = 9,425,292,469.03
  5. Step 5: Solve for x
    x = 9,425,292,469.03/106,574.60
  6. Step 6: Final answer
    x = 88,438.45

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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.