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Finding the Fourth Proportional to 125,796.52, 173,624.01 and 72,117.58

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Solution

The fourth proportional to 125,796.52, 173,624.01 and 72,117.58 is: 99,536.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,796.52 : 173,624.01 = 72,117.58 : x
  2. Step 2: Convert to fraction form
    125,796.52/173,624.01 = 72,117.58/x
  3. Step 3: Cross multiply
    125,796.52x = 173,624.01 × 72,117.58
  4. Step 4: Simplify right side
    125,796.52x = 12,521,343,431.10
  5. Step 5: Solve for x
    x = 12,521,343,431.10/125,796.52
  6. Step 6: Final answer
    x = 99,536.49

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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.