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Finding the Fourth Proportional to 334,340.80, 501,505.92 and 134,656.48

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Solution

The fourth proportional to 334,340.80, 501,505.92 and 134,656.48 is: 201,982.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,340.80 : 501,505.92 = 134,656.48 : x
  2. Step 2: Convert to fraction form
    334,340.80/501,505.92 = 134,656.48/x
  3. Step 3: Cross multiply
    334,340.80x = 501,505.92 × 134,656.48
  4. Step 4: Simplify right side
    334,340.80x = 67,531,021,886.36
  5. Step 5: Solve for x
    x = 67,531,021,886.36/334,340.80
  6. Step 6: Final answer
    x = 201,982.59

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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.