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Finding the Fourth Proportional to 101,024.94, 139,410.96 and 55,702.20

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Solution

The fourth proportional to 101,024.94, 139,410.96 and 55,702.20 is: 76,867.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,024.94 : 139,410.96 = 55,702.20 : x
  2. Step 2: Convert to fraction form
    101,024.94/139,410.96 = 55,702.20/x
  3. Step 3: Cross multiply
    101,024.94x = 139,410.96 × 55,702.20
  4. Step 4: Simplify right side
    101,024.94x = 7,765,497,176.11
  5. Step 5: Solve for x
    x = 7,765,497,176.11/101,024.94
  6. Step 6: Final answer
    x = 76,867.13

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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.