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Finding the Fourth Proportional to 80,875.69, 111,606.93 and 45,064.93

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Solution

The fourth proportional to 80,875.69, 111,606.93 and 45,064.93 is: 62,188.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,875.69 : 111,606.93 = 45,064.93 : x
  2. Step 2: Convert to fraction form
    80,875.69/111,606.93 = 45,064.93/x
  3. Step 3: Cross multiply
    80,875.69x = 111,606.93 × 45,064.93
  4. Step 4: Simplify right side
    80,875.69x = 5,029,558,487.96
  5. Step 5: Solve for x
    x = 5,029,558,487.96/80,875.69
  6. Step 6: Final answer
    x = 62,188.76

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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.