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Finding the Fourth Proportional to 176,196.75, 243,151.79 and 100,746.87

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Solution

The fourth proportional to 176,196.75, 243,151.79 and 100,746.87 is: 139,030.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,196.75 : 243,151.79 = 100,746.87 : x
  2. Step 2: Convert to fraction form
    176,196.75/243,151.79 = 100,746.87/x
  3. Step 3: Cross multiply
    176,196.75x = 243,151.79 × 100,746.87
  4. Step 4: Simplify right side
    176,196.75x = 24,496,781,273.66
  5. Step 5: Solve for x
    x = 24,496,781,273.66/176,196.75
  6. Step 6: Final answer
    x = 139,030.83

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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.