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Finding the Fourth Proportional to 74,235.84, 102,311.60 and 54,060.77

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Solution

The fourth proportional to 74,235.84, 102,311.60 and 54,060.77 is: 74,506.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,235.84 : 102,311.60 = 54,060.77 : x
  2. Step 2: Convert to fraction form
    74,235.84/102,311.60 = 54,060.77/x
  3. Step 3: Cross multiply
    74,235.84x = 102,311.60 × 54,060.77
  4. Step 4: Simplify right side
    74,235.84x = 5,531,043,094.07
  5. Step 5: Solve for x
    x = 5,531,043,094.07/74,235.84
  6. Step 6: Final answer
    x = 74,506.37

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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.