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Finding the Fourth Proportional to 223,855.41, 308,904.85 and 127,061.25

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Solution

The fourth proportional to 223,855.41, 308,904.85 and 127,061.25 is: 175,335.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,855.41 : 308,904.85 = 127,061.25 : x
  2. Step 2: Convert to fraction form
    223,855.41/308,904.85 = 127,061.25/x
  3. Step 3: Cross multiply
    223,855.41x = 308,904.85 × 127,061.25
  4. Step 4: Simplify right side
    223,855.41x = 39,249,836,372.06
  5. Step 5: Solve for x
    x = 39,249,836,372.06/223,855.41
  6. Step 6: Final answer
    x = 175,335.66

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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.