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Finding the Fourth Proportional to 130,904.88, 180,649.88 and 73,545.34

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Solution

The fourth proportional to 130,904.88, 180,649.88 and 73,545.34 is: 101,493.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,904.88 : 180,649.88 = 73,545.34 : x
  2. Step 2: Convert to fraction form
    130,904.88/180,649.88 = 73,545.34/x
  3. Step 3: Cross multiply
    130,904.88x = 180,649.88 × 73,545.34
  4. Step 4: Simplify right side
    130,904.88x = 13,285,956,845.56
  5. Step 5: Solve for x
    x = 13,285,956,845.56/130,904.88
  6. Step 6: Final answer
    x = 101,493.21

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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.