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Finding the Fourth Proportional to 130,039.88, 179,469.63 and 73,454.90

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Solution

The fourth proportional to 130,039.88, 179,469.63 and 73,454.90 is: 101,376.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,039.88 : 179,469.63 = 73,454.90 : x
  2. Step 2: Convert to fraction form
    130,039.88/179,469.63 = 73,454.90/x
  3. Step 3: Cross multiply
    130,039.88x = 179,469.63 × 73,454.90
  4. Step 4: Simplify right side
    130,039.88x = 13,182,922,827.34
  5. Step 5: Solve for x
    x = 13,182,922,827.34/130,039.88
  6. Step 6: Final answer
    x = 101,376.00

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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.