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Finding the Fourth Proportional to 476,685.52, 715,027.60 and 121,699.60

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Solution

The fourth proportional to 476,685.52, 715,027.60 and 121,699.60 is: 182,549.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,685.52 : 715,027.60 = 121,699.60 : x
  2. Step 2: Convert to fraction form
    476,685.52/715,027.60 = 121,699.60/x
  3. Step 3: Cross multiply
    476,685.52x = 715,027.60 × 121,699.60
  4. Step 4: Simplify right side
    476,685.52x = 87,018,572,908.96
  5. Step 5: Solve for x
    x = 87,018,572,908.96/476,685.52
  6. Step 6: Final answer
    x = 182,549.23

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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.