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Finding the Fourth Proportional to 248,421.40, 372,632.10 and 61,432.90

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Solution

The fourth proportional to 248,421.40, 372,632.10 and 61,432.90 is: 92,149.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,421.40 : 372,632.10 = 61,432.90 : x
  2. Step 2: Convert to fraction form
    248,421.40/372,632.10 = 61,432.90/x
  3. Step 3: Cross multiply
    248,421.40x = 372,632.10 × 61,432.90
  4. Step 4: Simplify right side
    248,421.40x = 22,891,870,536.09
  5. Step 5: Solve for x
    x = 22,891,870,536.09/248,421.40
  6. Step 6: Final answer
    x = 92,149.35

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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.