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Finding the Fourth Proportional to 88,851.76, 133,301.01 and 31,931.41

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Solution

The fourth proportional to 88,851.76, 133,301.01 and 31,931.41 is: 47,905.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,851.76 : 133,301.01 = 31,931.41 : x
  2. Step 2: Convert to fraction form
    88,851.76/133,301.01 = 31,931.41/x
  3. Step 3: Cross multiply
    88,851.76x = 133,301.01 × 31,931.41
  4. Step 4: Simplify right side
    88,851.76x = 4,256,489,203.72
  5. Step 5: Solve for x
    x = 4,256,489,203.72/88,851.76
  6. Step 6: Final answer
    x = 47,905.51

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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.