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Finding the Fourth Proportional to 113,806.56, 157,053.06 and 63,505.56

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Solution

The fourth proportional to 113,806.56, 157,053.06 and 63,505.56 is: 87,637.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,806.56 : 157,053.06 = 63,505.56 : x
  2. Step 2: Convert to fraction form
    113,806.56/157,053.06 = 63,505.56/x
  3. Step 3: Cross multiply
    113,806.56x = 157,053.06 × 63,505.56
  4. Step 4: Simplify right side
    113,806.56x = 9,973,742,525.01
  5. Step 5: Solve for x
    x = 9,973,742,525.01/113,806.56
  6. Step 6: Final answer
    x = 87,637.68

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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.