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Finding the Fourth Proportional to 228,404.62, 315,193.38 and 125,038.57

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Solution

The fourth proportional to 228,404.62, 315,193.38 and 125,038.57 is: 172,550.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,404.62 : 315,193.38 = 125,038.57 : x
  2. Step 2: Convert to fraction form
    228,404.62/315,193.38 = 125,038.57/x
  3. Step 3: Cross multiply
    228,404.62x = 315,193.38 × 125,038.57
  4. Step 4: Simplify right side
    228,404.62x = 39,411,329,508.67
  5. Step 5: Solve for x
    x = 39,411,329,508.67/228,404.62
  6. Step 6: Final answer
    x = 172,550.49

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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.