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Finding the Fourth Proportional to 152,991.84, 211,068.24 and 88,449.19

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Solution

The fourth proportional to 152,991.84, 211,068.24 and 88,449.19 is: 122,024.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,991.84 : 211,068.24 = 88,449.19 : x
  2. Step 2: Convert to fraction form
    152,991.84/211,068.24 = 88,449.19/x
  3. Step 3: Cross multiply
    152,991.84x = 211,068.24 × 88,449.19
  4. Step 4: Simplify right side
    152,991.84x = 18,668,814,862.73
  5. Step 5: Solve for x
    x = 18,668,814,862.73/152,991.84
  6. Step 6: Final answer
    x = 122,024.91

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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.