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Finding the Fourth Proportional to 243,197.16, 335,617.72 and 152,556.94

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Solution

The fourth proportional to 243,197.16, 335,617.72 and 152,556.94 is: 210,532.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,197.16 : 335,617.72 = 152,556.94 : x
  2. Step 2: Convert to fraction form
    243,197.16/335,617.72 = 152,556.94/x
  3. Step 3: Cross multiply
    243,197.16x = 335,617.72 × 152,556.94
  4. Step 4: Simplify right side
    243,197.16x = 51,200,812,372.98
  5. Step 5: Solve for x
    x = 51,200,812,372.98/243,197.16
  6. Step 6: Final answer
    x = 210,532.11

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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.