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Finding the Fourth Proportional to 56,395.49, 77,928.44 and 53,662.55

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Solution

The fourth proportional to 56,395.49, 77,928.44 and 53,662.55 is: 74,152.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,395.49 : 77,928.44 = 53,662.55 : x
  2. Step 2: Convert to fraction form
    56,395.49/77,928.44 = 53,662.55/x
  3. Step 3: Cross multiply
    56,395.49x = 77,928.44 × 53,662.55
  4. Step 4: Simplify right side
    56,395.49x = 4,181,838,149.97
  5. Step 5: Solve for x
    x = 4,181,838,149.97/56,395.49
  6. Step 6: Final answer
    x = 74,152.00

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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.