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Finding the Fourth Proportional to 92,187.82, 127,223.49 and 55,890.40

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Solution

The fourth proportional to 92,187.82, 127,223.49 and 55,890.40 is: 77,131.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,187.82 : 127,223.49 = 55,890.40 : x
  2. Step 2: Convert to fraction form
    92,187.82/127,223.49 = 55,890.40/x
  3. Step 3: Cross multiply
    92,187.82x = 127,223.49 × 55,890.40
  4. Step 4: Simplify right side
    92,187.82x = 7,110,571,637.03
  5. Step 5: Solve for x
    x = 7,110,571,637.03/92,187.82
  6. Step 6: Final answer
    x = 77,131.36

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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.