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Finding the Fourth Proportional to 260,876.53, 359,999.34 and 147,699.28

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Solution

The fourth proportional to 260,876.53, 359,999.34 and 147,699.28 is: 203,819.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,876.53 : 359,999.34 = 147,699.28 : x
  2. Step 2: Convert to fraction form
    260,876.53/359,999.34 = 147,699.28/x
  3. Step 3: Cross multiply
    260,876.53x = 359,999.34 × 147,699.28
  4. Step 4: Simplify right side
    260,876.53x = 53,171,643,318.48
  5. Step 5: Solve for x
    x = 53,171,643,318.48/260,876.53
  6. Step 6: Final answer
    x = 203,819.19

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1.5x scale

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.