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Finding the Fourth Proportional to 243,487.26, 336,005.97 and 136,058.17

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Solution

The fourth proportional to 243,487.26, 336,005.97 and 136,058.17 is: 187,756.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,487.26 : 336,005.97 = 136,058.17 : x
  2. Step 2: Convert to fraction form
    243,487.26/336,005.97 = 136,058.17/x
  3. Step 3: Cross multiply
    243,487.26x = 336,005.97 × 136,058.17
  4. Step 4: Simplify right side
    243,487.26x = 45,716,356,706.98
  5. Step 5: Solve for x
    x = 45,716,356,706.98/243,487.26
  6. Step 6: Final answer
    x = 187,756.67

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1.5x scale

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.