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Finding the Fourth Proportional to 171,221.32, 236,264.72 and 98,647.95

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Solution

The fourth proportional to 171,221.32, 236,264.72 and 98,647.95 is: 136,122.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,221.32 : 236,264.72 = 98,647.95 : x
  2. Step 2: Convert to fraction form
    171,221.32/236,264.72 = 98,647.95/x
  3. Step 3: Cross multiply
    171,221.32x = 236,264.72 × 98,647.95
  4. Step 4: Simplify right side
    171,221.32x = 23,307,029,792.08
  5. Step 5: Solve for x
    x = 23,307,029,792.08/171,221.32
  6. Step 6: Final answer
    x = 136,122.24

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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.