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Finding the Fourth Proportional to 213,024.01, 319,514.15 and 113,078.11

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Solution

The fourth proportional to 213,024.01, 319,514.15 and 113,078.11 is: 169,605.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,024.01 : 319,514.15 = 113,078.11 : x
  2. Step 2: Convert to fraction form
    213,024.01/319,514.15 = 113,078.11/x
  3. Step 3: Cross multiply
    213,024.01x = 319,514.15 × 113,078.11
  4. Step 4: Simplify right side
    213,024.01x = 36,130,056,246.28
  5. Step 5: Solve for x
    x = 36,130,056,246.28/213,024.01
  6. Step 6: Final answer
    x = 169,605.56

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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.