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Finding the Fourth Proportional to 101,833.36, 140,530.80 and 56,511.52

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Solution

The fourth proportional to 101,833.36, 140,530.80 and 56,511.52 is: 77,986.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,833.36 : 140,530.80 = 56,511.52 : x
  2. Step 2: Convert to fraction form
    101,833.36/140,530.80 = 56,511.52/x
  3. Step 3: Cross multiply
    101,833.36x = 140,530.80 × 56,511.52
  4. Step 4: Simplify right side
    101,833.36x = 7,941,609,114.82
  5. Step 5: Solve for x
    x = 7,941,609,114.82/101,833.36
  6. Step 6: Final answer
    x = 77,986.32

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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.