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Finding the Fourth Proportional to 124,462.65, 186,714.72 and 40,212.87

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Solution

The fourth proportional to 124,462.65, 186,714.72 and 40,212.87 is: 60,326.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,462.65 : 186,714.72 = 40,212.87 : x
  2. Step 2: Convert to fraction form
    124,462.65/186,714.72 = 40,212.87/x
  3. Step 3: Cross multiply
    124,462.65x = 186,714.72 × 40,212.87
  4. Step 4: Simplify right side
    124,462.65x = 7,508,334,762.45
  5. Step 5: Solve for x
    x = 7,508,334,762.45/124,462.65
  6. Step 6: Final answer
    x = 60,326.01

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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.