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Finding the Fourth Proportional to 341,220.80, 511,869.60 and 104,561.60

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Solution

The fourth proportional to 341,220.80, 511,869.60 and 104,561.60 is: 156,854.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,220.80 : 511,869.60 = 104,561.60 : x
  2. Step 2: Convert to fraction form
    341,220.80/511,869.60 = 104,561.60/x
  3. Step 3: Cross multiply
    341,220.80x = 511,869.60 × 104,561.60
  4. Step 4: Simplify right side
    341,220.80x = 53,521,904,367.36
  5. Step 5: Solve for x
    x = 53,521,904,367.36/341,220.80
  6. Step 6: Final answer
    x = 156,854.17

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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.