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Finding the Fourth Proportional to 101,669.14, 140,303.40 and 56,957.14

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Solution

The fourth proportional to 101,669.14, 140,303.40 and 56,957.14 is: 78,600.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,669.14 : 140,303.40 = 56,957.14 : x
  2. Step 2: Convert to fraction form
    101,669.14/140,303.40 = 56,957.14/x
  3. Step 3: Cross multiply
    101,669.14x = 140,303.40 × 56,957.14
  4. Step 4: Simplify right side
    101,669.14x = 7,991,280,396.28
  5. Step 5: Solve for x
    x = 7,991,280,396.28/101,669.14
  6. Step 6: Final answer
    x = 78,600.85

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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.