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Finding the Fourth Proportional to 372,071.52, 558,107.28 and 109,415.52

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Solution

The fourth proportional to 372,071.52, 558,107.28 and 109,415.52 is: 164,123.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,071.52 : 558,107.28 = 109,415.52 : x
  2. Step 2: Convert to fraction form
    372,071.52/558,107.28 = 109,415.52/x
  3. Step 3: Cross multiply
    372,071.52x = 558,107.28 × 109,415.52
  4. Step 4: Simplify right side
    372,071.52x = 61,065,598,256.99
  5. Step 5: Solve for x
    x = 61,065,598,256.99/372,071.52
  6. Step 6: Final answer
    x = 164,123.28

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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.