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Finding the Fourth Proportional to 61,322.64, 91,935.06 and 56,402.16

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Solution

The fourth proportional to 61,322.64, 91,935.06 and 56,402.16 is: 84,558.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,322.64 : 91,935.06 = 56,402.16 : x
  2. Step 2: Convert to fraction form
    61,322.64/91,935.06 = 56,402.16/x
  3. Step 3: Cross multiply
    61,322.64x = 91,935.06 × 56,402.16
  4. Step 4: Simplify right side
    61,322.64x = 5,185,335,963.73
  5. Step 5: Solve for x
    x = 5,185,335,963.73/61,322.64
  6. Step 6: Final answer
    x = 84,558.26

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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.