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Finding the Fourth Proportional to 71,093.76, 98,108.16 and 39,263.04

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Solution

The fourth proportional to 71,093.76, 98,108.16 and 39,263.04 is: 54,182.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,093.76 : 98,108.16 = 39,263.04 : x
  2. Step 2: Convert to fraction form
    71,093.76/98,108.16 = 39,263.04/x
  3. Step 3: Cross multiply
    71,093.76x = 98,108.16 × 39,263.04
  4. Step 4: Simplify right side
    71,093.76x = 3,852,024,610.41
  5. Step 5: Solve for x
    x = 3,852,024,610.41/71,093.76
  6. Step 6: Final answer
    x = 54,182.32

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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.