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Finding the Fourth Proportional to 308,027.94, 425,050.86 and 172,043.02

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Solution

The fourth proportional to 308,027.94, 425,050.86 and 172,043.02 is: 237,403.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,027.94 : 425,050.86 = 172,043.02 : x
  2. Step 2: Convert to fraction form
    308,027.94/425,050.86 = 172,043.02/x
  3. Step 3: Cross multiply
    308,027.94x = 425,050.86 × 172,043.02
  4. Step 4: Simplify right side
    308,027.94x = 73,127,030,622.53
  5. Step 5: Solve for x
    x = 73,127,030,622.53/308,027.94
  6. Step 6: Final answer
    x = 237,403.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.