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Finding the Fourth Proportional to 86,242.60, 119,014.62 and 48,516.88

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Solution

The fourth proportional to 86,242.60, 119,014.62 and 48,516.88 is: 66,953.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,242.60 : 119,014.62 = 48,516.88 : x
  2. Step 2: Convert to fraction form
    86,242.60/119,014.62 = 48,516.88/x
  3. Step 3: Cross multiply
    86,242.60x = 119,014.62 × 48,516.88
  4. Step 4: Simplify right side
    86,242.60x = 5,774,218,036.79
  5. Step 5: Solve for x
    x = 5,774,218,036.79/86,242.60
  6. Step 6: Final answer
    x = 66,953.20

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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.