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Finding the Fourth Proportional to 75,109.24, 112,702.72 and 33,018.88

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Solution

The fourth proportional to 75,109.24, 112,702.72 and 33,018.88 is: 49,545.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,109.24 : 112,702.72 = 33,018.88 : x
  2. Step 2: Convert to fraction form
    75,109.24/112,702.72 = 33,018.88/x
  3. Step 3: Cross multiply
    75,109.24x = 112,702.72 × 33,018.88
  4. Step 4: Simplify right side
    75,109.24x = 3,721,317,587.35
  5. Step 5: Solve for x
    x = 3,721,317,587.35/75,109.24
  6. Step 6: Final answer
    x = 49,545.40

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1.5x scale

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.