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Finding the Fourth Proportional to 172,695.50, 259,080.30 and 97,851.50

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Solution

The fourth proportional to 172,695.50, 259,080.30 and 97,851.50 is: 146,798.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,695.50 : 259,080.30 = 97,851.50 : x
  2. Step 2: Convert to fraction form
    172,695.50/259,080.30 = 97,851.50/x
  3. Step 3: Cross multiply
    172,695.50x = 259,080.30 × 97,851.50
  4. Step 4: Simplify right side
    172,695.50x = 25,351,395,975.45
  5. Step 5: Solve for x
    x = 25,351,395,975.45/172,695.50
  6. Step 6: Final answer
    x = 146,798.24

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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.