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Finding the Fourth Proportional to 124,479.72, 186,719.27 and 53,356.23

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Solution

The fourth proportional to 124,479.72, 186,719.27 and 53,356.23 is: 80,034.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,479.72 : 186,719.27 = 53,356.23 : x
  2. Step 2: Convert to fraction form
    124,479.72/186,719.27 = 53,356.23/x
  3. Step 3: Cross multiply
    124,479.72x = 186,719.27 × 53,356.23
  4. Step 4: Simplify right side
    124,479.72x = 9,962,636,048.77
  5. Step 5: Solve for x
    x = 9,962,636,048.77/124,479.72
  6. Step 6: Final answer
    x = 80,034.21

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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.