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Finding the Fourth Proportional to 169,714.80, 254,572.20 and 148,978.80

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Solution

The fourth proportional to 169,714.80, 254,572.20 and 148,978.80 is: 223,468.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,714.80 : 254,572.20 = 148,978.80 : x
  2. Step 2: Convert to fraction form
    169,714.80/254,572.20 = 148,978.80/x
  3. Step 3: Cross multiply
    169,714.80x = 254,572.20 × 148,978.80
  4. Step 4: Simplify right side
    169,714.80x = 37,925,860,869.36
  5. Step 5: Solve for x
    x = 37,925,860,869.36/169,714.80
  6. Step 6: Final answer
    x = 223,468.20

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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.