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Finding the Fourth Proportional to 86,343.96, 119,133.92 and 48,618.20

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Solution

The fourth proportional to 86,343.96, 119,133.92 and 48,618.20 is: 67,081.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,343.96 : 119,133.92 = 48,618.20 : x
  2. Step 2: Convert to fraction form
    86,343.96/119,133.92 = 48,618.20/x
  3. Step 3: Cross multiply
    86,343.96x = 119,133.92 × 48,618.20
  4. Step 4: Simplify right side
    86,343.96x = 5,792,076,749.34
  5. Step 5: Solve for x
    x = 5,792,076,749.34/86,343.96
  6. Step 6: Final answer
    x = 67,081.44

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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.