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Finding the Fourth Proportional to 84,890.82, 127,292.49 and 58,277.46

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Solution

The fourth proportional to 84,890.82, 127,292.49 and 58,277.46 is: 87,386.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,890.82 : 127,292.49 = 58,277.46 : x
  2. Step 2: Convert to fraction form
    84,890.82/127,292.49 = 58,277.46/x
  3. Step 3: Cross multiply
    84,890.82x = 127,292.49 × 58,277.46
  4. Step 4: Simplify right side
    84,890.82x = 7,418,282,994.28
  5. Step 5: Solve for x
    x = 7,418,282,994.28/84,890.82
  6. Step 6: Final answer
    x = 87,386.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.