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Finding the Fourth Proportional to 70,785.08, 97,642.78 and 44,243

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Solution

The fourth proportional to 70,785.08, 97,642.78 and 44,243 is: 61,029.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,785.08 : 97,642.78 = 44,243 : x
  2. Step 2: Convert to fraction form
    70,785.08/97,642.78 = 44,243/x
  3. Step 3: Cross multiply
    70,785.08x = 97,642.78 × 44,243
  4. Step 4: Simplify right side
    70,785.08x = 4,320,009,515.54
  5. Step 5: Solve for x
    x = 4,320,009,515.54/70,785.08
  6. Step 6: Final answer
    x = 61,029.94

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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.