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Finding the Fourth Proportional to 170,794.90, 256,186.86 and 77,300.74

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Solution

The fourth proportional to 170,794.90, 256,186.86 and 77,300.74 is: 115,948.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,794.90 : 256,186.86 = 77,300.74 : x
  2. Step 2: Convert to fraction form
    170,794.90/256,186.86 = 77,300.74/x
  3. Step 3: Cross multiply
    170,794.90x = 256,186.86 × 77,300.74
  4. Step 4: Simplify right side
    170,794.90x = 19,803,433,856.28
  5. Step 5: Solve for x
    x = 19,803,433,856.28/170,794.90
  6. Step 6: Final answer
    x = 115,948.63

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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.