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Finding the Fourth Proportional to 74,992.56, 103,496.13 and 42,737.04

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Solution

The fourth proportional to 74,992.56, 103,496.13 and 42,737.04 is: 58,980.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,992.56 : 103,496.13 = 42,737.04 : x
  2. Step 2: Convert to fraction form
    74,992.56/103,496.13 = 42,737.04/x
  3. Step 3: Cross multiply
    74,992.56x = 103,496.13 × 42,737.04
  4. Step 4: Simplify right side
    74,992.56x = 4,423,118,247.66
  5. Step 5: Solve for x
    x = 4,423,118,247.66/74,992.56
  6. Step 6: Final answer
    x = 58,980.76

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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.