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Finding the Fourth Proportional to 125,635.16, 173,374.56 and 69,045.32

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Solution

The fourth proportional to 125,635.16, 173,374.56 and 69,045.32 is: 95,281.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,635.16 : 173,374.56 = 69,045.32 : x
  2. Step 2: Convert to fraction form
    125,635.16/173,374.56 = 69,045.32/x
  3. Step 3: Cross multiply
    125,635.16x = 173,374.56 × 69,045.32
  4. Step 4: Simplify right side
    125,635.16x = 11,970,701,975.06
  5. Step 5: Solve for x
    x = 11,970,701,975.06/125,635.16
  6. Step 6: Final answer
    x = 95,281.46

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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.