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Finding the Fourth Proportional to 86,103.96, 118,826.10 and 52,118.66

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Solution

The fourth proportional to 86,103.96, 118,826.10 and 52,118.66 is: 71,925.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,103.96 : 118,826.10 = 52,118.66 : x
  2. Step 2: Convert to fraction form
    86,103.96/118,826.10 = 52,118.66/x
  3. Step 3: Cross multiply
    86,103.96x = 118,826.10 × 52,118.66
  4. Step 4: Simplify right side
    86,103.96x = 6,193,056,510.90
  5. Step 5: Solve for x
    x = 6,193,056,510.90/86,103.96
  6. Step 6: Final answer
    x = 71,925.34

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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.