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Finding the Fourth Proportional to 79,537.16, 109,717.86 and 48,893.60

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Solution

The fourth proportional to 79,537.16, 109,717.86 and 48,893.60 is: 67,446.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,537.16 : 109,717.86 = 48,893.60 : x
  2. Step 2: Convert to fraction form
    79,537.16/109,717.86 = 48,893.60/x
  3. Step 3: Cross multiply
    79,537.16x = 109,717.86 × 48,893.60
  4. Step 4: Simplify right side
    79,537.16x = 5,364,501,159.70
  5. Step 5: Solve for x
    x = 5,364,501,159.70/79,537.16
  6. Step 6: Final answer
    x = 67,446.48

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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.