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Finding the Fourth Proportional to 104,805.57, 144,632.28 and 57,058.80

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Solution

The fourth proportional to 104,805.57, 144,632.28 and 57,058.80 is: 78,741.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,805.57 : 144,632.28 = 57,058.80 : x
  2. Step 2: Convert to fraction form
    104,805.57/144,632.28 = 57,058.80/x
  3. Step 3: Cross multiply
    104,805.57x = 144,632.28 × 57,058.80
  4. Step 4: Simplify right side
    104,805.57x = 8,252,544,338.06
  5. Step 5: Solve for x
    x = 8,252,544,338.06/104,805.57
  6. Step 6: Final answer
    x = 78,741.47

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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.