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Finding the Fourth Proportional to 152,601.70, 228,902.55 and 69,657.70

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Solution

The fourth proportional to 152,601.70, 228,902.55 and 69,657.70 is: 104,486.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,601.70 : 228,902.55 = 69,657.70 : x
  2. Step 2: Convert to fraction form
    152,601.70/228,902.55 = 69,657.70/x
  3. Step 3: Cross multiply
    152,601.70x = 228,902.55 × 69,657.70
  4. Step 4: Simplify right side
    152,601.70x = 15,944,825,157.14
  5. Step 5: Solve for x
    x = 15,944,825,157.14/152,601.70
  6. Step 6: Final answer
    x = 104,486.55

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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.