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Finding the Fourth Proportional to 61,314.64, 91,923.08 and 56,394.16

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Solution

The fourth proportional to 61,314.64, 91,923.08 and 56,394.16 is: 84,546.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,314.64 : 91,923.08 = 56,394.16 : x
  2. Step 2: Convert to fraction form
    61,314.64/91,923.08 = 56,394.16/x
  3. Step 3: Cross multiply
    61,314.64x = 91,923.08 × 56,394.16
  4. Step 4: Simplify right side
    61,314.64x = 5,183,924,881.21
  5. Step 5: Solve for x
    x = 5,183,924,881.21/61,314.64
  6. Step 6: Final answer
    x = 84,546.28

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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.