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Finding the Fourth Proportional to 404,015.70, 606,019.80 and 154,697.70

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Solution

The fourth proportional to 404,015.70, 606,019.80 and 154,697.70 is: 232,045.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,015.70 : 606,019.80 = 154,697.70 : x
  2. Step 2: Convert to fraction form
    404,015.70/606,019.80 = 154,697.70/x
  3. Step 3: Cross multiply
    404,015.70x = 606,019.80 × 154,697.70
  4. Step 4: Simplify right side
    404,015.70x = 93,749,869,214.46
  5. Step 5: Solve for x
    x = 93,749,869,214.46/404,015.70
  6. Step 6: Final answer
    x = 232,045.11

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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.