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Finding the Fourth Proportional to 101,117.36, 139,542.72 and 55,797.04

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Solution

The fourth proportional to 101,117.36, 139,542.72 and 55,797.04 is: 77,000.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,117.36 : 139,542.72 = 55,797.04 : x
  2. Step 2: Convert to fraction form
    101,117.36/139,542.72 = 55,797.04/x
  3. Step 3: Cross multiply
    101,117.36x = 139,542.72 × 55,797.04
  4. Step 4: Simplify right side
    101,117.36x = 7,786,069,909.81
  5. Step 5: Solve for x
    x = 7,786,069,909.81/101,117.36
  6. Step 6: Final answer
    x = 77,000.33

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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.