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Finding the Fourth Proportional to 101,667.01, 140,266.86 and 61,365.46

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Solution

The fourth proportional to 101,667.01, 140,266.86 and 61,365.46 is: 84,664.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,667.01 : 140,266.86 = 61,365.46 : x
  2. Step 2: Convert to fraction form
    101,667.01/140,266.86 = 61,365.46/x
  3. Step 3: Cross multiply
    101,667.01x = 140,266.86 × 61,365.46
  4. Step 4: Simplify right side
    101,667.01x = 8,607,539,685.32
  5. Step 5: Solve for x
    x = 8,607,539,685.32/101,667.01
  6. Step 6: Final answer
    x = 84,664.04

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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.