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Finding the Fourth Proportional to 61,316.64, 91,926.06 and 56,396.16

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Solution

The fourth proportional to 61,316.64, 91,926.06 and 56,396.16 is: 84,549.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,316.64 : 91,926.06 = 56,396.16 : x
  2. Step 2: Convert to fraction form
    61,316.64/91,926.06 = 56,396.16/x
  3. Step 3: Cross multiply
    61,316.64x = 91,926.06 × 56,396.16
  4. Step 4: Simplify right side
    61,316.64x = 5,184,276,787.93
  5. Step 5: Solve for x
    x = 5,184,276,787.93/61,316.64
  6. Step 6: Final answer
    x = 84,549.26

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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.