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Finding the Fourth Proportional to 159,686.45, 239,529.70 and 64,968.17

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Solution

The fourth proportional to 159,686.45, 239,529.70 and 64,968.17 is: 97,452.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,686.45 : 239,529.70 = 64,968.17 : x
  2. Step 2: Convert to fraction form
    159,686.45/239,529.70 = 64,968.17/x
  3. Step 3: Cross multiply
    159,686.45x = 239,529.70 × 64,968.17
  4. Step 4: Simplify right side
    159,686.45x = 15,561,806,269.65
  5. Step 5: Solve for x
    x = 15,561,806,269.65/159,686.45
  6. Step 6: Final answer
    x = 97,452.27

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1.5x scale

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.