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Finding the Fourth Proportional to 112,391.50, 168,587.25 and 29,285.50

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Solution

The fourth proportional to 112,391.50, 168,587.25 and 29,285.50 is: 43,928.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,391.50 : 168,587.25 = 29,285.50 : x
  2. Step 2: Convert to fraction form
    112,391.50/168,587.25 = 29,285.50/x
  3. Step 3: Cross multiply
    112,391.50x = 168,587.25 × 29,285.50
  4. Step 4: Simplify right side
    112,391.50x = 4,937,161,909.88
  5. Step 5: Solve for x
    x = 4,937,161,909.88/112,391.50
  6. Step 6: Final answer
    x = 43,928.25

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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.