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Finding the Fourth Proportional to 375,977.60, 564,043.20 and 126,684.80

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Solution

The fourth proportional to 375,977.60, 564,043.20 and 126,684.80 is: 190,053.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,977.60 : 564,043.20 = 126,684.80 : x
  2. Step 2: Convert to fraction form
    375,977.60/564,043.20 = 126,684.80/x
  3. Step 3: Cross multiply
    375,977.60x = 564,043.20 × 126,684.80
  4. Step 4: Simplify right side
    375,977.60x = 71,455,699,983.36
  5. Step 5: Solve for x
    x = 71,455,699,983.36/375,977.60
  6. Step 6: Final answer
    x = 190,053.08

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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.