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Finding the Fourth Proportional to 61,462.43, 84,639.62 and 53,392.40

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Solution

The fourth proportional to 61,462.43, 84,639.62 and 53,392.40 is: 73,526.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,462.43 : 84,639.62 = 53,392.40 : x
  2. Step 2: Convert to fraction form
    61,462.43/84,639.62 = 53,392.40/x
  3. Step 3: Cross multiply
    61,462.43x = 84,639.62 × 53,392.40
  4. Step 4: Simplify right side
    61,462.43x = 4,519,111,756.73
  5. Step 5: Solve for x
    x = 4,519,111,756.73/61,462.43
  6. Step 6: Final answer
    x = 73,526.41

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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.