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Finding the Fourth Proportional to 92,464.84, 127,569.78 and 52,173.64

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Solution

The fourth proportional to 92,464.84, 127,569.78 and 52,173.64 is: 71,981.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,464.84 : 127,569.78 = 52,173.64 : x
  2. Step 2: Convert to fraction form
    92,464.84/127,569.78 = 52,173.64/x
  3. Step 3: Cross multiply
    92,464.84x = 127,569.78 × 52,173.64
  4. Step 4: Simplify right side
    92,464.84x = 6,655,779,776.60
  5. Step 5: Solve for x
    x = 6,655,779,776.60/92,464.84
  6. Step 6: Final answer
    x = 71,981.74

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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.