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Finding the Fourth Proportional to 115,476, 159,357.36 and 62,484

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Solution

The fourth proportional to 115,476, 159,357.36 and 62,484 is: 86,228.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,476 : 159,357.36 = 62,484 : x
  2. Step 2: Convert to fraction form
    115,476/159,357.36 = 62,484/x
  3. Step 3: Cross multiply
    115,476x = 159,357.36 × 62,484
  4. Step 4: Simplify right side
    115,476x = 9,957,285,282.24
  5. Step 5: Solve for x
    x = 9,957,285,282.24/115,476
  6. Step 6: Final answer
    x = 86,228.18

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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.