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Finding the Fourth Proportional to 364,045.11, 546,313.59 and 127,389.84

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Solution

The fourth proportional to 364,045.11, 546,313.59 and 127,389.84 is: 191,170.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,045.11 : 546,313.59 = 127,389.84 : x
  2. Step 2: Convert to fraction form
    364,045.11/546,313.59 = 127,389.84/x
  3. Step 3: Cross multiply
    364,045.11x = 546,313.59 × 127,389.84
  4. Step 4: Simplify right side
    364,045.11x = 69,594,800,819.93
  5. Step 5: Solve for x
    x = 69,594,800,819.93/364,045.11
  6. Step 6: Final answer
    x = 191,170.82

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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.