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Finding the Fourth Proportional to 68,246.90, 98,681.53 and 68,246.90

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Solution

The fourth proportional to 68,246.90, 98,681.53 and 68,246.90 is: 98,681.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,246.90 : 98,681.53 = 68,246.90 : x
  2. Step 2: Convert to fraction form
    68,246.90/98,681.53 = 68,246.90/x
  3. Step 3: Cross multiply
    68,246.90x = 98,681.53 × 68,246.90
  4. Step 4: Simplify right side
    68,246.90x = 6,734,708,168.52
  5. Step 5: Solve for x
    x = 6,734,708,168.52/68,246.90
  6. Step 6: Final answer
    x = 98,681.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.