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Finding the Fourth Proportional to 315,146.96, 472,720.20 and 93,530.96

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Solution

The fourth proportional to 315,146.96, 472,720.20 and 93,530.96 is: 140,296.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,146.96 : 472,720.20 = 93,530.96 : x
  2. Step 2: Convert to fraction form
    315,146.96/472,720.20 = 93,530.96/x
  3. Step 3: Cross multiply
    315,146.96x = 472,720.20 × 93,530.96
  4. Step 4: Simplify right side
    315,146.96x = 44,213,974,117.39
  5. Step 5: Solve for x
    x = 44,213,974,117.39/315,146.96
  6. Step 6: Final answer
    x = 140,296.37

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1.5x scale

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.