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Finding the Fourth Proportional to 243,756.98, 336,355.13 and 134,853.96

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Solution

The fourth proportional to 243,756.98, 336,355.13 and 134,853.96 is: 186,082.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,756.98 : 336,355.13 = 134,853.96 : x
  2. Step 2: Convert to fraction form
    243,756.98/336,355.13 = 134,853.96/x
  3. Step 3: Cross multiply
    243,756.98x = 336,355.13 × 134,853.96
  4. Step 4: Simplify right side
    243,756.98x = 45,358,822,845.28
  5. Step 5: Solve for x
    x = 45,358,822,845.28/243,756.98
  6. Step 6: Final answer
    x = 186,082.15

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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.