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Finding the Fourth Proportional to 199,329.50, 298,994.27 and 81,010.08

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Solution

The fourth proportional to 199,329.50, 298,994.27 and 81,010.08 is: 121,515.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,329.50 : 298,994.27 = 81,010.08 : x
  2. Step 2: Convert to fraction form
    199,329.50/298,994.27 = 81,010.08/x
  3. Step 3: Cross multiply
    199,329.50x = 298,994.27 × 81,010.08
  4. Step 4: Simplify right side
    199,329.50x = 24,221,549,327.19
  5. Step 5: Solve for x
    x = 24,221,549,327.19/199,329.50
  6. Step 6: Final answer
    x = 121,515.12

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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.