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Finding the Fourth Proportional to 70,234.80, 105,352.20 and 46,615.20

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Solution

The fourth proportional to 70,234.80, 105,352.20 and 46,615.20 is: 69,922.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,234.80 : 105,352.20 = 46,615.20 : x
  2. Step 2: Convert to fraction form
    70,234.80/105,352.20 = 46,615.20/x
  3. Step 3: Cross multiply
    70,234.80x = 105,352.20 × 46,615.20
  4. Step 4: Simplify right side
    70,234.80x = 4,911,013,873.44
  5. Step 5: Solve for x
    x = 4,911,013,873.44/70,234.80
  6. Step 6: Final answer
    x = 69,922.80

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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.