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Finding the Fourth Proportional to 315,794.64, 473,723.48 and 91,160.52

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Solution

The fourth proportional to 315,794.64, 473,723.48 and 91,160.52 is: 136,749.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,794.64 : 473,723.48 = 91,160.52 : x
  2. Step 2: Convert to fraction form
    315,794.64/473,723.48 = 91,160.52/x
  3. Step 3: Cross multiply
    315,794.64x = 473,723.48 × 91,160.52
  4. Step 4: Simplify right side
    315,794.64x = 43,184,878,773.01
  5. Step 5: Solve for x
    x = 43,184,878,773.01/315,794.64
  6. Step 6: Final answer
    x = 136,749.88

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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.