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Finding the Fourth Proportional to 356,661.80, 534,799.52 and 156,748.16

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Solution

The fourth proportional to 356,661.80, 534,799.52 and 156,748.16 is: 235,037.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,661.80 : 534,799.52 = 156,748.16 : x
  2. Step 2: Convert to fraction form
    356,661.80/534,799.52 = 156,748.16/x
  3. Step 3: Cross multiply
    356,661.80x = 534,799.52 × 156,748.16
  4. Step 4: Simplify right side
    356,661.80x = 83,828,840,728.88
  5. Step 5: Solve for x
    x = 83,828,840,728.88/356,661.80
  6. Step 6: Final answer
    x = 235,037.34

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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.