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Finding the Fourth Proportional to 110,411.89, 152,369.13 and 62,666.03

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Solution

The fourth proportional to 110,411.89, 152,369.13 and 62,666.03 is: 86,479.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,411.89 : 152,369.13 = 62,666.03 : x
  2. Step 2: Convert to fraction form
    110,411.89/152,369.13 = 62,666.03/x
  3. Step 3: Cross multiply
    110,411.89x = 152,369.13 × 62,666.03
  4. Step 4: Simplify right side
    110,411.89x = 9,548,369,087.57
  5. Step 5: Solve for x
    x = 9,548,369,087.57/110,411.89
  6. Step 6: Final answer
    x = 86,479.54

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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.