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Finding the Fourth Proportional to 364,278.47, 546,086.90 and 127,491.98

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Solution

The fourth proportional to 364,278.47, 546,086.90 and 127,491.98 is: 191,122.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,278.47 : 546,086.90 = 127,491.98 : x
  2. Step 2: Convert to fraction form
    364,278.47/546,086.90 = 127,491.98/x
  3. Step 3: Cross multiply
    364,278.47x = 546,086.90 × 127,491.98
  4. Step 4: Simplify right side
    364,278.47x = 69,621,697,721.36
  5. Step 5: Solve for x
    x = 69,621,697,721.36/364,278.47
  6. Step 6: Final answer
    x = 191,122.19

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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.