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Finding the Fourth Proportional to 170,987.98, 256,481.90 and 46,328.98

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Solution

The fourth proportional to 170,987.98, 256,481.90 and 46,328.98 is: 69,493.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,987.98 : 256,481.90 = 46,328.98 : x
  2. Step 2: Convert to fraction form
    170,987.98/256,481.90 = 46,328.98/x
  3. Step 3: Cross multiply
    170,987.98x = 256,481.90 × 46,328.98
  4. Step 4: Simplify right side
    170,987.98x = 11,882,544,815.46
  5. Step 5: Solve for x
    x = 11,882,544,815.46/170,987.98
  6. Step 6: Final answer
    x = 69,493.45

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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.