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Finding the Fourth Proportional to 74,903.13, 103,407.84 and 51,064.83

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Solution

The fourth proportional to 74,903.13, 103,407.84 and 51,064.83 is: 70,497.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,903.13 : 103,407.84 = 51,064.83 : x
  2. Step 2: Convert to fraction form
    74,903.13/103,407.84 = 51,064.83/x
  3. Step 3: Cross multiply
    74,903.13x = 103,407.84 × 51,064.83
  4. Step 4: Simplify right side
    74,903.13x = 5,280,503,770.27
  5. Step 5: Solve for x
    x = 5,280,503,770.27/74,903.13
  6. Step 6: Final answer
    x = 70,497.77

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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.