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Finding the Fourth Proportional to 192,335.91, 288,328.09 and 85,663.77

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Solution

The fourth proportional to 192,335.91, 288,328.09 and 85,663.77 is: 128,417.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,335.91 : 288,328.09 = 85,663.77 : x
  2. Step 2: Convert to fraction form
    192,335.91/288,328.09 = 85,663.77/x
  3. Step 3: Cross multiply
    192,335.91x = 288,328.09 × 85,663.77
  4. Step 4: Simplify right side
    192,335.91x = 24,699,271,186.30
  5. Step 5: Solve for x
    x = 24,699,271,186.30/192,335.91
  6. Step 6: Final answer
    x = 128,417.37

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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.