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Finding the Fourth Proportional to 372,165.84, 557,995.92 and 189,347.28

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Solution

The fourth proportional to 372,165.84, 557,995.92 and 189,347.28 is: 283,892.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,165.84 : 557,995.92 = 189,347.28 : x
  2. Step 2: Convert to fraction form
    372,165.84/557,995.92 = 189,347.28/x
  3. Step 3: Cross multiply
    372,165.84x = 557,995.92 × 189,347.28
  4. Step 4: Simplify right side
    372,165.84x = 105,655,009,703.10
  5. Step 5: Solve for x
    x = 105,655,009,703.10/372,165.84
  6. Step 6: Final answer
    x = 283,892.28

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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.