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Finding the Fourth Proportional to 173,272.40, 259,714.20 and 98,428.40

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Solution

The fourth proportional to 173,272.40, 259,714.20 and 98,428.40 is: 147,532.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,272.40 : 259,714.20 = 98,428.40 : x
  2. Step 2: Convert to fraction form
    173,272.40/259,714.20 = 98,428.40/x
  3. Step 3: Cross multiply
    173,272.40x = 259,714.20 × 98,428.40
  4. Step 4: Simplify right side
    173,272.40x = 25,563,253,163.28
  5. Step 5: Solve for x
    x = 25,563,253,163.28/173,272.40
  6. Step 6: Final answer
    x = 147,532.17

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1.5x scale

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.