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Finding the Fourth Proportional to 242,749.17, 364,123.76 and 84,940.72

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Solution

The fourth proportional to 242,749.17, 364,123.76 and 84,940.72 is: 127,411.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,749.17 : 364,123.76 = 84,940.72 : x
  2. Step 2: Convert to fraction form
    242,749.17/364,123.76 = 84,940.72/x
  3. Step 3: Cross multiply
    242,749.17x = 364,123.76 × 84,940.72
  4. Step 4: Simplify right side
    242,749.17x = 30,928,933,008.49
  5. Step 5: Solve for x
    x = 30,928,933,008.49/242,749.17
  6. Step 6: Final answer
    x = 127,411.08

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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.