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Finding the Fourth Proportional to 170,643.60, 255,619.80 and 96,685.20

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Solution

The fourth proportional to 170,643.60, 255,619.80 and 96,685.20 is: 144,831.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,643.60 : 255,619.80 = 96,685.20 : x
  2. Step 2: Convert to fraction form
    170,643.60/255,619.80 = 96,685.20/x
  3. Step 3: Cross multiply
    170,643.60x = 255,619.80 × 96,685.20
  4. Step 4: Simplify right side
    170,643.60x = 24,714,651,486.96
  5. Step 5: Solve for x
    x = 24,714,651,486.96/170,643.60
  6. Step 6: Final answer
    x = 144,831.99

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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.