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Finding the Fourth Proportional to 68,716.90, 96,341.90 and 68,716.90

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Solution

The fourth proportional to 68,716.90, 96,341.90 and 68,716.90 is: 96,341.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,716.90 : 96,341.90 = 68,716.90 : x
  2. Step 2: Convert to fraction form
    68,716.90/96,341.90 = 68,716.90/x
  3. Step 3: Cross multiply
    68,716.90x = 96,341.90 × 68,716.90
  4. Step 4: Simplify right side
    68,716.90x = 6,620,316,708.11
  5. Step 5: Solve for x
    x = 6,620,316,708.11/68,716.90
  6. Step 6: Final answer
    x = 96,341.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.