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Finding the Fourth Proportional to 243,513.64, 336,056.04 and 136,083.98

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Solution

The fourth proportional to 243,513.64, 336,056.04 and 136,083.98 is: 187,799.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,513.64 : 336,056.04 = 136,083.98 : x
  2. Step 2: Convert to fraction form
    243,513.64/336,056.04 = 136,083.98/x
  3. Step 3: Cross multiply
    243,513.64x = 336,056.04 × 136,083.98
  4. Step 4: Simplify right side
    243,513.64x = 45,731,843,426.24
  5. Step 5: Solve for x
    x = 45,731,843,426.24/243,513.64
  6. Step 6: Final answer
    x = 187,799.93

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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.