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Finding the Fourth Proportional to 328,802.22, 492,809.40 and 168,713.82

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Solution

The fourth proportional to 328,802.22, 492,809.40 and 168,713.82 is: 252,868.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,802.22 : 492,809.40 = 168,713.82 : x
  2. Step 2: Convert to fraction form
    328,802.22/492,809.40 = 168,713.82/x
  3. Step 3: Cross multiply
    328,802.22x = 492,809.40 × 168,713.82
  4. Step 4: Simplify right side
    328,802.22x = 83,143,756,405.91
  5. Step 5: Solve for x
    x = 83,143,756,405.91/328,802.22
  6. Step 6: Final answer
    x = 252,868.60

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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.