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Finding the Fourth Proportional to 74,191.98, 102,328.98 and 51,530.94

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Solution

The fourth proportional to 74,191.98, 102,328.98 and 51,530.94 is: 71,073.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,191.98 : 102,328.98 = 51,530.94 : x
  2. Step 2: Convert to fraction form
    74,191.98/102,328.98 = 51,530.94/x
  3. Step 3: Cross multiply
    74,191.98x = 102,328.98 × 51,530.94
  4. Step 4: Simplify right side
    74,191.98x = 5,273,108,528.64
  5. Step 5: Solve for x
    x = 5,273,108,528.64/74,191.98
  6. Step 6: Final answer
    x = 71,073.83

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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.