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Finding the Fourth Proportional to 144,598, 199,516.88 and 90,851.88

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Solution

The fourth proportional to 144,598, 199,516.88 and 90,851.88 is: 125,357.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,598 : 199,516.88 = 90,851.88 : x
  2. Step 2: Convert to fraction form
    144,598/199,516.88 = 90,851.88/x
  3. Step 3: Cross multiply
    144,598x = 199,516.88 × 90,851.88
  4. Step 4: Simplify right side
    144,598x = 18,126,483,639.73
  5. Step 5: Solve for x
    x = 18,126,483,639.73/144,598
  6. Step 6: Final answer
    x = 125,357.78

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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.