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Finding the Fourth Proportional to 164,089.70, 246,134.55 and 39,430.70

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Solution

The fourth proportional to 164,089.70, 246,134.55 and 39,430.70 is: 59,146.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,089.70 : 246,134.55 = 39,430.70 : x
  2. Step 2: Convert to fraction form
    164,089.70/246,134.55 = 39,430.70/x
  3. Step 3: Cross multiply
    164,089.70x = 246,134.55 × 39,430.70
  4. Step 4: Simplify right side
    164,089.70x = 9,705,257,600.69
  5. Step 5: Solve for x
    x = 9,705,257,600.69/164,089.70
  6. Step 6: Final answer
    x = 59,146.05

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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.