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Finding the Fourth Proportional to 125,603.37, 173,342.30 and 71,905.23

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Solution

The fourth proportional to 125,603.37, 173,342.30 and 71,905.23 is: 99,234.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,603.37 : 173,342.30 = 71,905.23 : x
  2. Step 2: Convert to fraction form
    125,603.37/173,342.30 = 71,905.23/x
  3. Step 3: Cross multiply
    125,603.37x = 173,342.30 × 71,905.23
  4. Step 4: Simplify right side
    125,603.37x = 12,464,217,590.70
  5. Step 5: Solve for x
    x = 12,464,217,590.70/125,603.37
  6. Step 6: Final answer
    x = 99,234.74

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1.5x scale

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.