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Finding the Fourth Proportional to 74,560.72, 102,859.90 and 44,328.90

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Solution

The fourth proportional to 74,560.72, 102,859.90 and 44,328.90 is: 61,153.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,560.72 : 102,859.90 = 44,328.90 : x
  2. Step 2: Convert to fraction form
    74,560.72/102,859.90 = 44,328.90/x
  3. Step 3: Cross multiply
    74,560.72x = 102,859.90 × 44,328.90
  4. Step 4: Simplify right side
    74,560.72x = 4,559,666,221.11
  5. Step 5: Solve for x
    x = 4,559,666,221.11/74,560.72
  6. Step 6: Final answer
    x = 61,153.73

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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.