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Finding the Fourth Proportional to 103,661.06, 143,051.37 and 58,949.06

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Solution

The fourth proportional to 103,661.06, 143,051.37 and 58,949.06 is: 81,349.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,661.06 : 143,051.37 = 58,949.06 : x
  2. Step 2: Convert to fraction form
    103,661.06/143,051.37 = 58,949.06/x
  3. Step 3: Cross multiply
    103,661.06x = 143,051.37 × 58,949.06
  4. Step 4: Simplify right side
    103,661.06x = 8,432,743,793.21
  5. Step 5: Solve for x
    x = 8,432,743,793.21/103,661.06
  6. Step 6: Final answer
    x = 81,349.20

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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.