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Finding the Fourth Proportional to 315,722.32, 473,526.55 and 91,027.57

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Solution

The fourth proportional to 315,722.32, 473,526.55 and 91,027.57 is: 136,524.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,722.32 : 473,526.55 = 91,027.57 : x
  2. Step 2: Convert to fraction form
    315,722.32/473,526.55 = 91,027.57/x
  3. Step 3: Cross multiply
    315,722.32x = 473,526.55 × 91,027.57
  4. Step 4: Simplify right side
    315,722.32x = 43,103,971,176.98
  5. Step 5: Solve for x
    x = 43,103,971,176.98/315,722.32
  6. Step 6: Final answer
    x = 136,524.94

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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.