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Finding the Fourth Proportional to 223,049.47, 307,799.93 and 121,072.74

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Solution

The fourth proportional to 223,049.47, 307,799.93 and 121,072.74 is: 167,075.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,049.47 : 307,799.93 = 121,072.74 : x
  2. Step 2: Convert to fraction form
    223,049.47/307,799.93 = 121,072.74/x
  3. Step 3: Cross multiply
    223,049.47x = 307,799.93 × 121,072.74
  4. Step 4: Simplify right side
    223,049.47x = 37,266,178,752.54
  5. Step 5: Solve for x
    x = 37,266,178,752.54/223,049.47
  6. Step 6: Final answer
    x = 167,075.85

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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.