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Finding the Fourth Proportional to 176,351.94, 243,371.42 and 99,869.39

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Solution

The fourth proportional to 176,351.94, 243,371.42 and 99,869.39 is: 137,823.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,351.94 : 243,371.42 = 99,869.39 : x
  2. Step 2: Convert to fraction form
    176,351.94/243,371.42 = 99,869.39/x
  3. Step 3: Cross multiply
    176,351.94x = 243,371.42 × 99,869.39
  4. Step 4: Simplify right side
    176,351.94x = 24,305,355,251.11
  5. Step 5: Solve for x
    x = 24,305,355,251.11/176,351.94
  6. Step 6: Final answer
    x = 137,823.01

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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.