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Finding the Fourth Proportional to 246,783.99, 340,569.78 and 151,387.05

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Solution

The fourth proportional to 246,783.99, 340,569.78 and 151,387.05 is: 208,918.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,783.99 : 340,569.78 = 151,387.05 : x
  2. Step 2: Convert to fraction form
    246,783.99/340,569.78 = 151,387.05/x
  3. Step 3: Cross multiply
    246,783.99x = 340,569.78 × 151,387.05
  4. Step 4: Simplify right side
    246,783.99x = 51,557,854,313.35
  5. Step 5: Solve for x
    x = 51,557,854,313.35/246,783.99
  6. Step 6: Final answer
    x = 208,918.96

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1.5x scale

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.