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Finding the Fourth Proportional to 86,744.79, 119,706.26 and 49,018.23

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Solution

The fourth proportional to 86,744.79, 119,706.26 and 49,018.23 is: 67,644.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,744.79 : 119,706.26 = 49,018.23 : x
  2. Step 2: Convert to fraction form
    86,744.79/119,706.26 = 49,018.23/x
  3. Step 3: Cross multiply
    86,744.79x = 119,706.26 × 49,018.23
  4. Step 4: Simplify right side
    86,744.79x = 5,867,788,740.03
  5. Step 5: Solve for x
    x = 5,867,788,740.03/86,744.79
  6. Step 6: Final answer
    x = 67,644.28

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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.