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Finding the Fourth Proportional to 73,478.90, 110,218.35 and 47,234.90

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Solution

The fourth proportional to 73,478.90, 110,218.35 and 47,234.90 is: 70,852.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,478.90 : 110,218.35 = 47,234.90 : x
  2. Step 2: Convert to fraction form
    73,478.90/110,218.35 = 47,234.90/x
  3. Step 3: Cross multiply
    73,478.90x = 110,218.35 × 47,234.90
  4. Step 4: Simplify right side
    73,478.90x = 5,206,152,740.42
  5. Step 5: Solve for x
    x = 5,206,152,740.42/73,478.90
  6. Step 6: Final answer
    x = 70,852.35

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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.