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Finding the Fourth Proportional to 185,641.26, 278,461.53 and 67,312.26

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Solution

The fourth proportional to 185,641.26, 278,461.53 and 67,312.26 is: 100,968.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,641.26 : 278,461.53 = 67,312.26 : x
  2. Step 2: Convert to fraction form
    185,641.26/278,461.53 = 67,312.26/x
  3. Step 3: Cross multiply
    185,641.26x = 278,461.53 × 67,312.26
  4. Step 4: Simplify right side
    185,641.26x = 18,743,874,907.36
  5. Step 5: Solve for x
    x = 18,743,874,907.36/185,641.26
  6. Step 6: Final answer
    x = 100,968.26

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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.