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Finding the Fourth Proportional to 218,957.80, 301,748.88 and 158,425.96

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Solution

The fourth proportional to 218,957.80, 301,748.88 and 158,425.96 is: 218,329.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,957.80 : 301,748.88 = 158,425.96 : x
  2. Step 2: Convert to fraction form
    218,957.80/301,748.88 = 158,425.96/x
  3. Step 3: Cross multiply
    218,957.80x = 301,748.88 × 158,425.96
  4. Step 4: Simplify right side
    218,957.80x = 47,804,855,992.92
  5. Step 5: Solve for x
    x = 47,804,855,992.92/218,957.80
  6. Step 6: Final answer
    x = 218,329.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.