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Finding the Fourth Proportional to 247,145.76, 341,035.92 and 151,656.48

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Solution

The fourth proportional to 247,145.76, 341,035.92 and 151,656.48 is: 209,270.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,145.76 : 341,035.92 = 151,656.48 : x
  2. Step 2: Convert to fraction form
    247,145.76/341,035.92 = 151,656.48/x
  3. Step 3: Cross multiply
    247,145.76x = 341,035.92 × 151,656.48
  4. Step 4: Simplify right side
    247,145.76x = 51,720,307,180.76
  5. Step 5: Solve for x
    x = 51,720,307,180.76/247,145.76
  6. Step 6: Final answer
    x = 209,270.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.