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Finding the Fourth Proportional to 130,039.58, 195,056.48 and 59,918.88

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Solution

The fourth proportional to 130,039.58, 195,056.48 and 59,918.88 is: 89,876.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,039.58 : 195,056.48 = 59,918.88 : x
  2. Step 2: Convert to fraction form
    130,039.58/195,056.48 = 59,918.88/x
  3. Step 3: Cross multiply
    130,039.58x = 195,056.48 × 59,918.88
  4. Step 4: Simplify right side
    130,039.58x = 11,687,565,818.34
  5. Step 5: Solve for x
    x = 11,687,565,818.34/130,039.58
  6. Step 6: Final answer
    x = 89,876.99

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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.