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Finding the Fourth Proportional to 315,074.26, 472,457.90 and 104,641.12

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Solution

The fourth proportional to 315,074.26, 472,457.90 and 104,641.12 is: 156,910.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,074.26 : 472,457.90 = 104,641.12 : x
  2. Step 2: Convert to fraction form
    315,074.26/472,457.90 = 104,641.12/x
  3. Step 3: Cross multiply
    315,074.26x = 472,457.90 × 104,641.12
  4. Step 4: Simplify right side
    315,074.26x = 49,438,523,808.85
  5. Step 5: Solve for x
    x = 49,438,523,808.85/315,074.26
  6. Step 6: Final answer
    x = 156,910.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.