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Finding the Fourth Proportional to 455,644.71, 683,486.06 and 156,331.17

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Solution

The fourth proportional to 455,644.71, 683,486.06 and 156,331.17 is: 234,503.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,644.71 : 683,486.06 = 156,331.17 : x
  2. Step 2: Convert to fraction form
    455,644.71/683,486.06 = 156,331.17/x
  3. Step 3: Cross multiply
    455,644.71x = 683,486.06 × 156,331.17
  4. Step 4: Simplify right side
    455,644.71x = 106,850,174,656.83
  5. Step 5: Solve for x
    x = 106,850,174,656.83/455,644.71
  6. Step 6: Final answer
    x = 234,503.27

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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.