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Finding the Fourth Proportional to 243,487.19, 336,005.88 and 136,058.11

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Solution

The fourth proportional to 243,487.19, 336,005.88 and 136,058.11 is: 187,756.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,487.19 : 336,005.88 = 136,058.11 : x
  2. Step 2: Convert to fraction form
    243,487.19/336,005.88 = 136,058.11/x
  3. Step 3: Cross multiply
    243,487.19x = 336,005.88 × 136,058.11
  4. Step 4: Simplify right side
    243,487.19x = 45,716,324,981.69
  5. Step 5: Solve for x
    x = 45,716,324,981.69/243,487.19
  6. Step 6: Final answer
    x = 187,756.59

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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.