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Finding the Fourth Proportional to 228,562.16, 342,527.95 and 172,340.48

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Solution

The fourth proportional to 228,562.16, 342,527.95 and 172,340.48 is: 258,272.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,562.16 : 342,527.95 = 172,340.48 : x
  2. Step 2: Convert to fraction form
    228,562.16/342,527.95 = 172,340.48/x
  3. Step 3: Cross multiply
    228,562.16x = 342,527.95 × 172,340.48
  4. Step 4: Simplify right side
    228,562.16x = 59,031,431,741.88
  5. Step 5: Solve for x
    x = 59,031,431,741.88/228,562.16
  6. Step 6: Final answer
    x = 258,272.98

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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.