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Finding the Fourth Proportional to 203,296.61, 280,558.23 and 112,652.35

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Solution

The fourth proportional to 203,296.61, 280,558.23 and 112,652.35 is: 155,465.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,296.61 : 280,558.23 = 112,652.35 : x
  2. Step 2: Convert to fraction form
    203,296.61/280,558.23 = 112,652.35/x
  3. Step 3: Cross multiply
    203,296.61x = 280,558.23 × 112,652.35
  4. Step 4: Simplify right side
    203,296.61x = 31,605,543,921.34
  5. Step 5: Solve for x
    x = 31,605,543,921.34/203,296.61
  6. Step 6: Final answer
    x = 155,465.18

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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.