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Finding the Fourth Proportional to 170,157.87, 234,831.42 and 98,539.17

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Solution

The fourth proportional to 170,157.87, 234,831.42 and 98,539.17 is: 135,991.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,157.87 : 234,831.42 = 98,539.17 : x
  2. Step 2: Convert to fraction form
    170,157.87/234,831.42 = 98,539.17/x
  3. Step 3: Cross multiply
    170,157.87x = 234,831.42 × 98,539.17
  4. Step 4: Simplify right side
    170,157.87x = 23,140,093,216.72
  5. Step 5: Solve for x
    x = 23,140,093,216.72/170,157.87
  6. Step 6: Final answer
    x = 135,991.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.