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Finding the Fourth Proportional to 71,359.95, 98,276.99 and 69,810.22

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Solution

The fourth proportional to 71,359.95, 98,276.99 and 69,810.22 is: 96,142.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,359.95 : 98,276.99 = 69,810.22 : x
  2. Step 2: Convert to fraction form
    71,359.95/98,276.99 = 69,810.22/x
  3. Step 3: Cross multiply
    71,359.95x = 98,276.99 × 69,810.22
  4. Step 4: Simplify right side
    71,359.95x = 6,860,737,698.09
  5. Step 5: Solve for x
    x = 6,860,737,698.09/71,359.95
  6. Step 6: Final answer
    x = 96,142.69

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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.