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Finding the Fourth Proportional to 453,856.10, 680,784.15 and 188,135.60

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Solution

The fourth proportional to 453,856.10, 680,784.15 and 188,135.60 is: 282,203.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,856.10 : 680,784.15 = 188,135.60 : x
  2. Step 2: Convert to fraction form
    453,856.10/680,784.15 = 188,135.60/x
  3. Step 3: Cross multiply
    453,856.10x = 680,784.15 × 188,135.60
  4. Step 4: Simplify right side
    453,856.10x = 128,079,734,530.74
  5. Step 5: Solve for x
    x = 128,079,734,530.74/453,856.10
  6. Step 6: Final answer
    x = 282,203.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.