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Finding the Fourth Proportional to 336,818.79, 505,170.75 and 112,153.74

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Solution

The fourth proportional to 336,818.79, 505,170.75 and 112,153.74 is: 168,211.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,818.79 : 505,170.75 = 112,153.74 : x
  2. Step 2: Convert to fraction form
    336,818.79/505,170.75 = 112,153.74/x
  3. Step 3: Cross multiply
    336,818.79x = 505,170.75 × 112,153.74
  4. Step 4: Simplify right side
    336,818.79x = 56,656,788,951.11
  5. Step 5: Solve for x
    x = 56,656,788,951.11/336,818.79
  6. Step 6: Final answer
    x = 168,211.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.