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Finding the Fourth Proportional to 356,885.57, 535,114.51 and 113,621.51

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Solution

The fourth proportional to 356,885.57, 535,114.51 and 113,621.51 is: 170,364.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,885.57 : 535,114.51 = 113,621.51 : x
  2. Step 2: Convert to fraction form
    356,885.57/535,114.51 = 113,621.51/x
  3. Step 3: Cross multiply
    356,885.57x = 535,114.51 × 113,621.51
  4. Step 4: Simplify right side
    356,885.57x = 60,800,519,702.84
  5. Step 5: Solve for x
    x = 60,800,519,702.84/356,885.57
  6. Step 6: Final answer
    x = 170,364.19

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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.