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Finding the Fourth Proportional to 192,021.90, 287,514.45 and 192,021.90

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Solution

The fourth proportional to 192,021.90, 287,514.45 and 192,021.90 is: 287,514.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,021.90 : 287,514.45 = 192,021.90 : x
  2. Step 2: Convert to fraction form
    192,021.90/287,514.45 = 192,021.90/x
  3. Step 3: Cross multiply
    192,021.90x = 287,514.45 × 192,021.90
  4. Step 4: Simplify right side
    192,021.90x = 55,209,070,966.46
  5. Step 5: Solve for x
    x = 55,209,070,966.46/192,021.90
  6. Step 6: Final answer
    x = 287,514.45

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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.