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Finding the Fourth Proportional to 118,881.94, 178,545.06 and 104,655.52

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Solution

The fourth proportional to 118,881.94, 178,545.06 and 104,655.52 is: 157,178.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,881.94 : 178,545.06 = 104,655.52 : x
  2. Step 2: Convert to fraction form
    118,881.94/178,545.06 = 104,655.52/x
  3. Step 3: Cross multiply
    118,881.94x = 178,545.06 × 104,655.52
  4. Step 4: Simplify right side
    118,881.94x = 18,685,726,097.73
  5. Step 5: Solve for x
    x = 18,685,726,097.73/118,881.94
  6. Step 6: Final answer
    x = 157,178.85

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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.