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Finding the Fourth Proportional to 356,715.41, 535,155.47 and 120,052.31

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Solution

The fourth proportional to 356,715.41, 535,155.47 and 120,052.31 is: 180,106.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,715.41 : 535,155.47 = 120,052.31 : x
  2. Step 2: Convert to fraction form
    356,715.41/535,155.47 = 120,052.31/x
  3. Step 3: Cross multiply
    356,715.41x = 535,155.47 × 120,052.31
  4. Step 4: Simplify right side
    356,715.41x = 64,246,650,229.40
  5. Step 5: Solve for x
    x = 64,246,650,229.40/356,715.41
  6. Step 6: Final answer
    x = 180,106.18

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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.