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Finding the Fourth Proportional to 113,803.88, 157,054.28 and 63,502.88

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Solution

The fourth proportional to 113,803.88, 157,054.28 and 63,502.88 is: 87,636.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,803.88 : 157,054.28 = 63,502.88 : x
  2. Step 2: Convert to fraction form
    113,803.88/157,054.28 = 63,502.88/x
  3. Step 3: Cross multiply
    113,803.88x = 157,054.28 × 63,502.88
  4. Step 4: Simplify right side
    113,803.88x = 9,973,397,993.54
  5. Step 5: Solve for x
    x = 9,973,397,993.54/113,803.88
  6. Step 6: Final answer
    x = 87,636.72

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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.