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Finding the Fourth Proportional to 71,746.39, 98,594.42 and 68,453.57

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Solution

The fourth proportional to 71,746.39, 98,594.42 and 68,453.57 is: 94,069.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,746.39 : 98,594.42 = 68,453.57 : x
  2. Step 2: Convert to fraction form
    71,746.39/98,594.42 = 68,453.57/x
  3. Step 3: Cross multiply
    71,746.39x = 98,594.42 × 68,453.57
  4. Step 4: Simplify right side
    71,746.39x = 6,749,139,935.30
  5. Step 5: Solve for x
    x = 6,749,139,935.30/71,746.39
  6. Step 6: Final answer
    x = 94,069.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.