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Finding the Fourth Proportional to 113,806.63, 157,041.21 and 62,818.46

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Solution

The fourth proportional to 113,806.63, 157,041.21 and 62,818.46 is: 86,682.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,806.63 : 157,041.21 = 62,818.46 : x
  2. Step 2: Convert to fraction form
    113,806.63/157,041.21 = 62,818.46/x
  3. Step 3: Cross multiply
    113,806.63x = 157,041.21 × 62,818.46
  4. Step 4: Simplify right side
    113,806.63x = 9,865,086,968.74
  5. Step 5: Solve for x
    x = 9,865,086,968.74/113,806.63
  6. Step 6: Final answer
    x = 86,682.88

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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.