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Finding the Fourth Proportional to 72,700.51, 100,331.99 and 44,411.53

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Solution

The fourth proportional to 72,700.51, 100,331.99 and 44,411.53 is: 61,291.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,700.51 : 100,331.99 = 44,411.53 : x
  2. Step 2: Convert to fraction form
    72,700.51/100,331.99 = 44,411.53/x
  3. Step 3: Cross multiply
    72,700.51x = 100,331.99 × 44,411.53
  4. Step 4: Simplify right side
    72,700.51x = 4,455,897,183.84
  5. Step 5: Solve for x
    x = 4,455,897,183.84/72,700.51
  6. Step 6: Final answer
    x = 61,291.14

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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.