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Finding the Fourth Proportional to 71,184.95, 98,113.92 and 65,151.77

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Solution

The fourth proportional to 71,184.95, 98,113.92 and 65,151.77 is: 89,798.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,184.95 : 98,113.92 = 65,151.77 : x
  2. Step 2: Convert to fraction form
    71,184.95/98,113.92 = 65,151.77/x
  3. Step 3: Cross multiply
    71,184.95x = 98,113.92 × 65,151.77
  4. Step 4: Simplify right side
    71,184.95x = 6,392,295,549.64
  5. Step 5: Solve for x
    x = 6,392,295,549.64/71,184.95
  6. Step 6: Final answer
    x = 89,798.42

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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.