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Finding the Fourth Proportional to 125,817.50, 173,629.37 and 69,230.09

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Solution

The fourth proportional to 125,817.50, 173,629.37 and 69,230.09 is: 95,538.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,817.50 : 173,629.37 = 69,230.09 : x
  2. Step 2: Convert to fraction form
    125,817.50/173,629.37 = 69,230.09/x
  3. Step 3: Cross multiply
    125,817.50x = 173,629.37 × 69,230.09
  4. Step 4: Simplify right side
    125,817.50x = 12,020,376,911.74
  5. Step 5: Solve for x
    x = 12,020,376,911.74/125,817.50
  6. Step 6: Final answer
    x = 95,538.20

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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.