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Finding the Fourth Proportional to 174,975.20, 262,462.80 and 172,059.20

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Solution

The fourth proportional to 174,975.20, 262,462.80 and 172,059.20 is: 258,088.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,975.20 : 262,462.80 = 172,059.20 : x
  2. Step 2: Convert to fraction form
    174,975.20/262,462.80 = 172,059.20/x
  3. Step 3: Cross multiply
    174,975.20x = 262,462.80 × 172,059.20
  4. Step 4: Simplify right side
    174,975.20x = 45,159,139,397.76
  5. Step 5: Solve for x
    x = 45,159,139,397.76/174,975.20
  6. Step 6: Final answer
    x = 258,088.80

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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.