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Finding the Fourth Proportional to 468,428.64, 702,424.20 and 168,869.76

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Solution

The fourth proportional to 468,428.64, 702,424.20 and 168,869.76 is: 253,225.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,428.64 : 702,424.20 = 168,869.76 : x
  2. Step 2: Convert to fraction form
    468,428.64/702,424.20 = 168,869.76/x
  3. Step 3: Cross multiply
    468,428.64x = 702,424.20 × 168,869.76
  4. Step 4: Simplify right side
    468,428.64x = 118,618,206,072.19
  5. Step 5: Solve for x
    x = 118,618,206,072.19/468,428.64
  6. Step 6: Final answer
    x = 253,225.78

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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.