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Finding the Fourth Proportional to 105,532.40, 158,047.31 and 61,065.44

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Solution

The fourth proportional to 105,532.40, 158,047.31 and 61,065.44 is: 91,452.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,532.40 : 158,047.31 = 61,065.44 : x
  2. Step 2: Convert to fraction form
    105,532.40/158,047.31 = 61,065.44/x
  3. Step 3: Cross multiply
    105,532.40x = 158,047.31 × 61,065.44
  4. Step 4: Simplify right side
    105,532.40x = 9,651,227,888.39
  5. Step 5: Solve for x
    x = 9,651,227,888.39/105,532.40
  6. Step 6: Final answer
    x = 91,452.75

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1.5x scale

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.