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Finding the Fourth Proportional to 342,580.08, 513,881.34 and 117,938.13

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Solution

The fourth proportional to 342,580.08, 513,881.34 and 117,938.13 is: 176,911.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,580.08 : 513,881.34 = 117,938.13 : x
  2. Step 2: Convert to fraction form
    342,580.08/513,881.34 = 117,938.13/x
  3. Step 3: Cross multiply
    342,580.08x = 513,881.34 × 117,938.13
  4. Step 4: Simplify right side
    342,580.08x = 60,606,204,281.49
  5. Step 5: Solve for x
    x = 60,606,204,281.49/342,580.08
  6. Step 6: Final answer
    x = 176,911.06

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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.