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Finding the Fourth Proportional to 61,165.53, 84,574.94 and 53,292.33

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Solution

The fourth proportional to 61,165.53, 84,574.94 and 53,292.33 is: 73,688.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,165.53 : 84,574.94 = 53,292.33 : x
  2. Step 2: Convert to fraction form
    61,165.53/84,574.94 = 53,292.33/x
  3. Step 3: Cross multiply
    61,165.53x = 84,574.94 × 53,292.33
  4. Step 4: Simplify right side
    61,165.53x = 4,507,195,345.75
  5. Step 5: Solve for x
    x = 4,507,195,345.75/61,165.53
  6. Step 6: Final answer
    x = 73,688.49

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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.