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Finding the Fourth Proportional to 242,792.70, 335,055.33 and 135,369.42

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Solution

The fourth proportional to 242,792.70, 335,055.33 and 135,369.42 is: 186,810.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,792.70 : 335,055.33 = 135,369.42 : x
  2. Step 2: Convert to fraction form
    242,792.70/335,055.33 = 135,369.42/x
  3. Step 3: Cross multiply
    242,792.70x = 335,055.33 × 135,369.42
  4. Step 4: Simplify right side
    242,792.70x = 45,356,245,690.01
  5. Step 5: Solve for x
    x = 45,356,245,690.01/242,792.70
  6. Step 6: Final answer
    x = 186,810.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.