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Finding the Fourth Proportional to 130,445.56, 195,671.28 and 73,881.48

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Solution

The fourth proportional to 130,445.56, 195,671.28 and 73,881.48 is: 110,823.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,445.56 : 195,671.28 = 73,881.48 : x
  2. Step 2: Convert to fraction form
    130,445.56/195,671.28 = 73,881.48/x
  3. Step 3: Cross multiply
    130,445.56x = 195,671.28 × 73,881.48
  4. Step 4: Simplify right side
    130,445.56x = 14,456,483,759.89
  5. Step 5: Solve for x
    x = 14,456,483,759.89/130,445.56
  6. Step 6: Final answer
    x = 110,823.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.