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Finding the Fourth Proportional to 125,505.50, 173,199.08 and 68,145.50

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Solution

The fourth proportional to 125,505.50, 173,199.08 and 68,145.50 is: 94,041.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,505.50 : 173,199.08 = 68,145.50 : x
  2. Step 2: Convert to fraction form
    125,505.50/173,199.08 = 68,145.50/x
  3. Step 3: Cross multiply
    125,505.50x = 173,199.08 × 68,145.50
  4. Step 4: Simplify right side
    125,505.50x = 11,802,737,998.41
  5. Step 5: Solve for x
    x = 11,802,737,998.41/125,505.50
  6. Step 6: Final answer
    x = 94,041.60

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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.