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Finding the Fourth Proportional to 435,688.86, 653,533.82 and 136,171.02

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Solution

The fourth proportional to 435,688.86, 653,533.82 and 136,171.02 is: 204,256.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,688.86 : 653,533.82 = 136,171.02 : x
  2. Step 2: Convert to fraction form
    435,688.86/653,533.82 = 136,171.02/x
  3. Step 3: Cross multiply
    435,688.86x = 653,533.82 × 136,171.02
  4. Step 4: Simplify right side
    435,688.86x = 88,992,366,873.90
  5. Step 5: Solve for x
    x = 88,992,366,873.90/435,688.86
  6. Step 6: Final answer
    x = 204,256.70

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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.