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Finding the Fourth Proportional to 260,802.84, 391,158.02 and 118,614.80

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Solution

The fourth proportional to 260,802.84, 391,158.02 and 118,614.80 is: 177,901.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,802.84 : 391,158.02 = 118,614.80 : x
  2. Step 2: Convert to fraction form
    260,802.84/391,158.02 = 118,614.80/x
  3. Step 3: Cross multiply
    260,802.84x = 391,158.02 × 118,614.80
  4. Step 4: Simplify right side
    260,802.84x = 46,397,130,310.70
  5. Step 5: Solve for x
    x = 46,397,130,310.70/260,802.84
  6. Step 6: Final answer
    x = 177,901.17

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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.