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Finding the Fourth Proportional to 79,554.48, 109,802.84 and 62,292.52

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Solution

The fourth proportional to 79,554.48, 109,802.84 and 62,292.52 is: 85,977.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,554.48 : 109,802.84 = 62,292.52 : x
  2. Step 2: Convert to fraction form
    79,554.48/109,802.84 = 62,292.52/x
  3. Step 3: Cross multiply
    79,554.48x = 109,802.84 × 62,292.52
  4. Step 4: Simplify right side
    79,554.48x = 6,839,895,606.76
  5. Step 5: Solve for x
    x = 6,839,895,606.76/79,554.48
  6. Step 6: Final answer
    x = 85,977.50

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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.