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Finding the Fourth Proportional to 101,423.65, 152,089.32 and 54,026.71

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Solution

The fourth proportional to 101,423.65, 152,089.32 and 54,026.71 is: 81,015.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,423.65 : 152,089.32 = 54,026.71 : x
  2. Step 2: Convert to fraction form
    101,423.65/152,089.32 = 54,026.71/x
  3. Step 3: Cross multiply
    101,423.65x = 152,089.32 × 54,026.71
  4. Step 4: Simplify right side
    101,423.65x = 8,216,885,585.74
  5. Step 5: Solve for x
    x = 8,216,885,585.74/101,423.65
  6. Step 6: Final answer
    x = 81,015.48

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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.