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Finding the Fourth Proportional to 404,036.71, 606,051.42 and 154,718.71

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Solution

The fourth proportional to 404,036.71, 606,051.42 and 154,718.71 is: 232,076.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,036.71 : 606,051.42 = 154,718.71 : x
  2. Step 2: Convert to fraction form
    404,036.71/606,051.42 = 154,718.71/x
  3. Step 3: Cross multiply
    404,036.71x = 606,051.42 × 154,718.71
  4. Step 4: Simplify right side
    404,036.71x = 93,767,491,800.74
  5. Step 5: Solve for x
    x = 93,767,491,800.74/404,036.71
  6. Step 6: Final answer
    x = 232,076.67

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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.