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Finding the Fourth Proportional to 171,479.58, 236,619.36 and 98,885.16

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Solution

The fourth proportional to 171,479.58, 236,619.36 and 98,885.16 is: 136,448.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,479.58 : 236,619.36 = 98,885.16 : x
  2. Step 2: Convert to fraction form
    171,479.58/236,619.36 = 98,885.16/x
  3. Step 3: Cross multiply
    171,479.58x = 236,619.36 × 98,885.16
  4. Step 4: Simplify right side
    171,479.58x = 23,398,143,272.70
  5. Step 5: Solve for x
    x = 23,398,143,272.70/171,479.58
  6. Step 6: Final answer
    x = 136,448.57

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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.