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Finding the Fourth Proportional to 60,808.47, 90,813.47 and 51,828.10

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Solution

The fourth proportional to 60,808.47, 90,813.47 and 51,828.10 is: 77,401.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,808.47 : 90,813.47 = 51,828.10 : x
  2. Step 2: Convert to fraction form
    60,808.47/90,813.47 = 51,828.10/x
  3. Step 3: Cross multiply
    60,808.47x = 90,813.47 × 51,828.10
  4. Step 4: Simplify right side
    60,808.47x = 4,706,689,604.51
  5. Step 5: Solve for x
    x = 4,706,689,604.51/60,808.47
  6. Step 6: Final answer
    x = 77,401.88

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.