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Finding the Fourth Proportional to 130,232.96, 179,720.40 and 73,646.40

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Solution

The fourth proportional to 130,232.96, 179,720.40 and 73,646.40 is: 101,631.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,232.96 : 179,720.40 = 73,646.40 : x
  2. Step 2: Convert to fraction form
    130,232.96/179,720.40 = 73,646.40/x
  3. Step 3: Cross multiply
    130,232.96x = 179,720.40 × 73,646.40
  4. Step 4: Simplify right side
    130,232.96x = 13,235,760,466.56
  5. Step 5: Solve for x
    x = 13,235,760,466.56/130,232.96
  6. Step 6: Final answer
    x = 101,631.42

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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.