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Finding the Fourth Proportional to 125,825, 173,639.72 and 69,237.59

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Solution

The fourth proportional to 125,825, 173,639.72 and 69,237.59 is: 95,548.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,825 : 173,639.72 = 69,237.59 : x
  2. Step 2: Convert to fraction form
    125,825/173,639.72 = 69,237.59/x
  3. Step 3: Cross multiply
    125,825x = 173,639.72 × 69,237.59
  4. Step 4: Simplify right side
    125,825x = 12,022,395,741.07
  5. Step 5: Solve for x
    x = 12,022,395,741.07/125,825
  6. Step 6: Final answer
    x = 95,548.55

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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.