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Finding the Fourth Proportional to 170,831.70, 256,247.55 and 162,666.90

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Solution

The fourth proportional to 170,831.70, 256,247.55 and 162,666.90 is: 244,000.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,831.70 : 256,247.55 = 162,666.90 : x
  2. Step 2: Convert to fraction form
    170,831.70/256,247.55 = 162,666.90/x
  3. Step 3: Cross multiply
    170,831.70x = 256,247.55 × 162,666.90
  4. Step 4: Simplify right side
    170,831.70x = 41,682,994,591.10
  5. Step 5: Solve for x
    x = 41,682,994,591.10/170,831.70
  6. Step 6: Final answer
    x = 244,000.35

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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.