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Finding the Fourth Proportional to 71,362.50, 98,480.25 and 43,068.20

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Solution

The fourth proportional to 71,362.50, 98,480.25 and 43,068.20 is: 59,434.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,362.50 : 98,480.25 = 43,068.20 : x
  2. Step 2: Convert to fraction form
    71,362.50/98,480.25 = 43,068.20/x
  3. Step 3: Cross multiply
    71,362.50x = 98,480.25 × 43,068.20
  4. Step 4: Simplify right side
    71,362.50x = 4,241,366,610.65
  5. Step 5: Solve for x
    x = 4,241,366,610.65/71,362.50
  6. Step 6: Final answer
    x = 59,434.11

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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.