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Finding the Fourth Proportional to 173,081.76, 238,874.76 and 100,469.16

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Solution

The fourth proportional to 173,081.76, 238,874.76 and 100,469.16 is: 138,660.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,081.76 : 238,874.76 = 100,469.16 : x
  2. Step 2: Convert to fraction form
    173,081.76/238,874.76 = 100,469.16/x
  3. Step 3: Cross multiply
    173,081.76x = 238,874.76 × 100,469.16
  4. Step 4: Simplify right side
    173,081.76x = 23,999,546,482.40
  5. Step 5: Solve for x
    x = 23,999,546,482.40/173,081.76
  6. Step 6: Final answer
    x = 138,660.17

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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.