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Finding the Fourth Proportional to 73,138.10, 100,925.34 and 42,924.66

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Solution

The fourth proportional to 73,138.10, 100,925.34 and 42,924.66 is: 59,232.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,138.10 : 100,925.34 = 42,924.66 : x
  2. Step 2: Convert to fraction form
    73,138.10/100,925.34 = 42,924.66/x
  3. Step 3: Cross multiply
    73,138.10x = 100,925.34 × 42,924.66
  4. Step 4: Simplify right side
    73,138.10x = 4,332,185,904.88
  5. Step 5: Solve for x
    x = 4,332,185,904.88/73,138.10
  6. Step 6: Final answer
    x = 59,232.96

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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.