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Finding the Fourth Proportional to 247,681.77, 341,905.47 and 167,218.28

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Solution

The fourth proportional to 247,681.77, 341,905.47 and 167,218.28 is: 230,831.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,681.77 : 341,905.47 = 167,218.28 : x
  2. Step 2: Convert to fraction form
    247,681.77/341,905.47 = 167,218.28/x
  3. Step 3: Cross multiply
    247,681.77x = 341,905.47 × 167,218.28
  4. Step 4: Simplify right side
    247,681.77x = 57,172,844,615.99
  5. Step 5: Solve for x
    x = 57,172,844,615.99/247,681.77
  6. Step 6: Final answer
    x = 230,831.86

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1.5x scale

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.