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Finding the Fourth Proportional to 130,755.87, 196,104.65 and 51,848.91

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Solution

The fourth proportional to 130,755.87, 196,104.65 and 51,848.91 is: 77,761.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,755.87 : 196,104.65 = 51,848.91 : x
  2. Step 2: Convert to fraction form
    130,755.87/196,104.65 = 51,848.91/x
  3. Step 3: Cross multiply
    130,755.87x = 196,104.65 × 51,848.91
  4. Step 4: Simplify right side
    130,755.87x = 10,167,812,089.19
  5. Step 5: Solve for x
    x = 10,167,812,089.19/130,755.87
  6. Step 6: Final answer
    x = 77,761.80

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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.