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Finding the Fourth Proportional to 104,805.31, 144,630.46 and 57,058.56

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Solution

The fourth proportional to 104,805.31, 144,630.46 and 57,058.56 is: 78,740.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,805.31 : 144,630.46 = 57,058.56 : x
  2. Step 2: Convert to fraction form
    104,805.31/144,630.46 = 57,058.56/x
  3. Step 3: Cross multiply
    104,805.31x = 144,630.46 × 57,058.56
  4. Step 4: Simplify right side
    104,805.31x = 8,252,405,779.74
  5. Step 5: Solve for x
    x = 8,252,405,779.74/104,805.31
  6. Step 6: Final answer
    x = 78,740.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.