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Finding the Fourth Proportional to 62,424.80, 93,637.20 and 54,648.80

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Solution

The fourth proportional to 62,424.80, 93,637.20 and 54,648.80 is: 81,973.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,424.80 : 93,637.20 = 54,648.80 : x
  2. Step 2: Convert to fraction form
    62,424.80/93,637.20 = 54,648.80/x
  3. Step 3: Cross multiply
    62,424.80x = 93,637.20 × 54,648.80
  4. Step 4: Simplify right side
    62,424.80x = 5,117,160,615.36
  5. Step 5: Solve for x
    x = 5,117,160,615.36/62,424.80
  6. Step 6: Final answer
    x = 81,973.20

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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.