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Finding the Fourth Proportional to 199,424.72, 298,887.62 and 99,612.77

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Solution

The fourth proportional to 199,424.72, 298,887.62 and 99,612.77 is: 149,294.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,424.72 : 298,887.62 = 99,612.77 : x
  2. Step 2: Convert to fraction form
    199,424.72/298,887.62 = 99,612.77/x
  3. Step 3: Cross multiply
    199,424.72x = 298,887.62 × 99,612.77
  4. Step 4: Simplify right side
    199,424.72x = 29,773,023,746.91
  5. Step 5: Solve for x
    x = 29,773,023,746.91/199,424.72
  6. Step 6: Final answer
    x = 149,294.55

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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.