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Finding the Fourth Proportional to 101,561.52, 140,167.44 and 61,298.40

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Solution

The fourth proportional to 101,561.52, 140,167.44 and 61,298.40 is: 84,599.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,561.52 : 140,167.44 = 61,298.40 : x
  2. Step 2: Convert to fraction form
    101,561.52/140,167.44 = 61,298.40/x
  3. Step 3: Cross multiply
    101,561.52x = 140,167.44 × 61,298.40
  4. Step 4: Simplify right side
    101,561.52x = 8,592,039,804.10
  5. Step 5: Solve for x
    x = 8,592,039,804.10/101,561.52
  6. Step 6: Final answer
    x = 84,599.36

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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.