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Finding the Fourth Proportional to 124,636.65, 186,827.40 and 61,359.45

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Solution

The fourth proportional to 124,636.65, 186,827.40 and 61,359.45 is: 91,976.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,636.65 : 186,827.40 = 61,359.45 : x
  2. Step 2: Convert to fraction form
    124,636.65/186,827.40 = 61,359.45/x
  3. Step 3: Cross multiply
    124,636.65x = 186,827.40 × 61,359.45
  4. Step 4: Simplify right side
    124,636.65x = 11,463,626,508.93
  5. Step 5: Solve for x
    x = 11,463,626,508.93/124,636.65
  6. Step 6: Final answer
    x = 91,976.37

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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.