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Finding the Fourth Proportional to 101,485.07, 140,046.54 and 56,164.94

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Solution

The fourth proportional to 101,485.07, 140,046.54 and 56,164.94 is: 77,506.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,485.07 : 140,046.54 = 56,164.94 : x
  2. Step 2: Convert to fraction form
    101,485.07/140,046.54 = 56,164.94/x
  3. Step 3: Cross multiply
    101,485.07x = 140,046.54 × 56,164.94
  4. Step 4: Simplify right side
    101,485.07x = 7,865,705,516.31
  5. Step 5: Solve for x
    x = 7,865,705,516.31/101,485.07
  6. Step 6: Final answer
    x = 77,506.04

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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.