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Finding the Fourth Proportional to 119,347.32, 179,020.97 and 56,828.28

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Solution

The fourth proportional to 119,347.32, 179,020.97 and 56,828.28 is: 85,242.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,347.32 : 179,020.97 = 56,828.28 : x
  2. Step 2: Convert to fraction form
    119,347.32/179,020.97 = 56,828.28/x
  3. Step 3: Cross multiply
    119,347.32x = 179,020.97 × 56,828.28
  4. Step 4: Simplify right side
    119,347.32x = 10,173,453,809.03
  5. Step 5: Solve for x
    x = 10,173,453,809.03/119,347.32
  6. Step 6: Final answer
    x = 85,242.42

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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.