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Finding the Fourth Proportional to 125,772, 173,570.16 and 69,182.16

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Solution

The fourth proportional to 125,772, 173,570.16 and 69,182.16 is: 95,474.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,772 : 173,570.16 = 69,182.16 : x
  2. Step 2: Convert to fraction form
    125,772/173,570.16 = 69,182.16/x
  3. Step 3: Cross multiply
    125,772x = 173,570.16 × 69,182.16
  4. Step 4: Simplify right side
    125,772x = 12,007,958,580.35
  5. Step 5: Solve for x
    x = 12,007,958,580.35/125,772
  6. Step 6: Final answer
    x = 95,474.02

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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.