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Finding the Fourth Proportional to 61,661.40, 92,492.10 and 54,772.35

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Solution

The fourth proportional to 61,661.40, 92,492.10 and 54,772.35 is: 82,158.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,661.40 : 92,492.10 = 54,772.35 : x
  2. Step 2: Convert to fraction form
    61,661.40/92,492.10 = 54,772.35/x
  3. Step 3: Cross multiply
    61,661.40x = 92,492.10 × 54,772.35
  4. Step 4: Simplify right side
    61,661.40x = 5,066,009,673.44
  5. Step 5: Solve for x
    x = 5,066,009,673.44/61,661.40
  6. Step 6: Final answer
    x = 82,158.53

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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.