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Finding the Fourth Proportional to 208,160.88, 312,260.90 and 58,400.58

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Solution

The fourth proportional to 208,160.88, 312,260.90 and 58,400.58 is: 87,606.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,160.88 : 312,260.90 = 58,400.58 : x
  2. Step 2: Convert to fraction form
    208,160.88/312,260.90 = 58,400.58/x
  3. Step 3: Cross multiply
    208,160.88x = 312,260.90 × 58,400.58
  4. Step 4: Simplify right side
    208,160.88x = 18,236,217,671.32
  5. Step 5: Solve for x
    x = 18,236,217,671.32/208,160.88
  6. Step 6: Final answer
    x = 87,606.36

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1.5x scale

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.