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Finding the Fourth Proportional to 199,803.57, 299,705.35 and 81,484.17

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Solution

The fourth proportional to 199,803.57, 299,705.35 and 81,484.17 is: 122,226.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,803.57 : 299,705.35 = 81,484.17 : x
  2. Step 2: Convert to fraction form
    199,803.57/299,705.35 = 81,484.17/x
  3. Step 3: Cross multiply
    199,803.57x = 299,705.35 × 81,484.17
  4. Step 4: Simplify right side
    199,803.57x = 24,421,241,689.31
  5. Step 5: Solve for x
    x = 24,421,241,689.31/199,803.57
  6. Step 6: Final answer
    x = 122,226.25

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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.