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Finding the Fourth Proportional to 79,048.12, 109,089.90 and 45,524.92

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Solution

The fourth proportional to 79,048.12, 109,089.90 and 45,524.92 is: 62,826.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,048.12 : 109,089.90 = 45,524.92 : x
  2. Step 2: Convert to fraction form
    79,048.12/109,089.90 = 45,524.92/x
  3. Step 3: Cross multiply
    79,048.12x = 109,089.90 × 45,524.92
  4. Step 4: Simplify right side
    79,048.12x = 4,966,308,970.31
  5. Step 5: Solve for x
    x = 4,966,308,970.31/79,048.12
  6. Step 6: Final answer
    x = 62,826.40

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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.