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Finding the Fourth Proportional to 169,315.60, 253,973.40 and 168,149.20

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Solution

The fourth proportional to 169,315.60, 253,973.40 and 168,149.20 is: 252,223.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,315.60 : 253,973.40 = 168,149.20 : x
  2. Step 2: Convert to fraction form
    169,315.60/253,973.40 = 168,149.20/x
  3. Step 3: Cross multiply
    169,315.60x = 253,973.40 × 168,149.20
  4. Step 4: Simplify right side
    169,315.60x = 42,705,424,031.28
  5. Step 5: Solve for x
    x = 42,705,424,031.28/169,315.60
  6. Step 6: Final answer
    x = 252,223.80

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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.