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Finding the Fourth Proportional to 88,854.51, 133,305.12 and 31,934.16

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Solution

The fourth proportional to 88,854.51, 133,305.12 and 31,934.16 is: 47,909.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,854.51 : 133,305.12 = 31,934.16 : x
  2. Step 2: Convert to fraction form
    88,854.51/133,305.12 = 31,934.16/x
  3. Step 3: Cross multiply
    88,854.51x = 133,305.12 × 31,934.16
  4. Step 4: Simplify right side
    88,854.51x = 4,256,987,030.90
  5. Step 5: Solve for x
    x = 4,256,987,030.90/88,854.51
  6. Step 6: Final answer
    x = 47,909.63

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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.