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Finding the Fourth Proportional to 74,562.48, 102,900.48 and 42,736.68

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Solution

The fourth proportional to 74,562.48, 102,900.48 and 42,736.68 is: 58,979.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,562.48 : 102,900.48 = 42,736.68 : x
  2. Step 2: Convert to fraction form
    74,562.48/102,900.48 = 42,736.68/x
  3. Step 3: Cross multiply
    74,562.48x = 102,900.48 × 42,736.68
  4. Step 4: Simplify right side
    74,562.48x = 4,397,624,885.61
  5. Step 5: Solve for x
    x = 4,397,624,885.61/74,562.48
  6. Step 6: Final answer
    x = 58,979.06

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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.