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Finding the Fourth Proportional to 92,091.51, 127,085.09 and 51,805.17

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Solution

The fourth proportional to 92,091.51, 127,085.09 and 51,805.17 is: 71,490.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,091.51 : 127,085.09 = 51,805.17 : x
  2. Step 2: Convert to fraction form
    92,091.51/127,085.09 = 51,805.17/x
  3. Step 3: Cross multiply
    92,091.51x = 127,085.09 × 51,805.17
  4. Step 4: Simplify right side
    92,091.51x = 6,583,664,432.89
  5. Step 5: Solve for x
    x = 6,583,664,432.89/92,091.51
  6. Step 6: Final answer
    x = 71,490.46

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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.