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Finding the Fourth Proportional to 17,169,802.40, 25,754,703.60 and 5,200,983.20

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Solution

The fourth proportional to 17,169,802.40, 25,754,703.60 and 5,200,983.20 is: 7,801,474.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,169,802.40 : 25,754,703.60 = 5,200,983.20 : x
  2. Step 2: Convert to fraction form
    17,169,802.40/25,754,703.60 = 5,200,983.20/x
  3. Step 3: Cross multiply
    17,169,802.40x = 25,754,703.60 × 5,200,983.20
  4. Step 4: Simplify right side
    17,169,802.40x = 133,949,780,744,579.53
  5. Step 5: Solve for x
    x = 133,949,780,744,579.53/17,169,802.40
  6. Step 6: Final answer
    x = 7,801,474.80

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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.