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Finding the Fourth Proportional to 118,808.61, 177,769.98 and 117,479.94

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Solution

The fourth proportional to 118,808.61, 177,769.98 and 117,479.94 is: 175,781.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,808.61 : 177,769.98 = 117,479.94 : x
  2. Step 2: Convert to fraction form
    118,808.61/177,769.98 = 117,479.94/x
  3. Step 3: Cross multiply
    118,808.61x = 177,769.98 × 117,479.94
  4. Step 4: Simplify right side
    118,808.61x = 20,884,406,584.20
  5. Step 5: Solve for x
    x = 20,884,406,584.20/118,808.61
  6. Step 6: Final answer
    x = 175,781.93

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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.