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Finding the Fourth Proportional to 243,992.16, 336,669.02 and 153,283.92

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Solution

The fourth proportional to 243,992.16, 336,669.02 and 153,283.92 is: 211,506.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,992.16 : 336,669.02 = 153,283.92 : x
  2. Step 2: Convert to fraction form
    243,992.16/336,669.02 = 153,283.92/x
  3. Step 3: Cross multiply
    243,992.16x = 336,669.02 × 153,283.92
  4. Step 4: Simplify right side
    243,992.16x = 51,605,946,361.74
  5. Step 5: Solve for x
    x = 51,605,946,361.74/243,992.16
  6. Step 6: Final answer
    x = 211,506.58

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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.