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Finding the Fourth Proportional to 104,159.54, 143,739.72 and 58,219.12

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Solution

The fourth proportional to 104,159.54, 143,739.72 and 58,219.12 is: 80,342.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,159.54 : 143,739.72 = 58,219.12 : x
  2. Step 2: Convert to fraction form
    104,159.54/143,739.72 = 58,219.12/x
  3. Step 3: Cross multiply
    104,159.54x = 143,739.72 × 58,219.12
  4. Step 4: Simplify right side
    104,159.54x = 8,368,400,350.86
  5. Step 5: Solve for x
    x = 8,368,400,350.86/104,159.54
  6. Step 6: Final answer
    x = 80,342.14

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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.