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Finding the Fourth Proportional to 75,090.92, 103,615.24 and 44,869.86

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Solution

The fourth proportional to 75,090.92, 103,615.24 and 44,869.86 is: 61,914.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,090.92 : 103,615.24 = 44,869.86 : x
  2. Step 2: Convert to fraction form
    75,090.92/103,615.24 = 44,869.86/x
  3. Step 3: Cross multiply
    75,090.92x = 103,615.24 × 44,869.86
  4. Step 4: Simplify right side
    75,090.92x = 4,649,201,312.67
  5. Step 5: Solve for x
    x = 4,649,201,312.67/75,090.92
  6. Step 6: Final answer
    x = 61,914.29

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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.