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Finding the Fourth Proportional to 67,615.61, 93,278.12 and 43,749.99

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Solution

The fourth proportional to 67,615.61, 93,278.12 and 43,749.99 is: 60,354.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,615.61 : 93,278.12 = 43,749.99 : x
  2. Step 2: Convert to fraction form
    67,615.61/93,278.12 = 43,749.99/x
  3. Step 3: Cross multiply
    67,615.61x = 93,278.12 × 43,749.99
  4. Step 4: Simplify right side
    67,615.61x = 4,080,916,598.47
  5. Step 5: Solve for x
    x = 4,080,916,598.47/67,615.61
  6. Step 6: Final answer
    x = 60,354.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.