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Finding the Fourth Proportional to 115,907.70, 173,818.35 and 40,998.90

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Solution

The fourth proportional to 115,907.70, 173,818.35 and 40,998.90 is: 61,483.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,907.70 : 173,818.35 = 40,998.90 : x
  2. Step 2: Convert to fraction form
    115,907.70/173,818.35 = 40,998.90/x
  3. Step 3: Cross multiply
    115,907.70x = 173,818.35 × 40,998.90
  4. Step 4: Simplify right side
    115,907.70x = 7,126,361,149.82
  5. Step 5: Solve for x
    x = 7,126,361,149.82/115,907.70
  6. Step 6: Final answer
    x = 61,483.07

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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.