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Finding the Fourth Proportional to 223,411.90, 335,117.85 and 221,856.70

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Solution

The fourth proportional to 223,411.90, 335,117.85 and 221,856.70 is: 332,785.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,411.90 : 335,117.85 = 221,856.70 : x
  2. Step 2: Convert to fraction form
    223,411.90/335,117.85 = 221,856.70/x
  3. Step 3: Cross multiply
    223,411.90x = 335,117.85 × 221,856.70
  4. Step 4: Simplify right side
    223,411.90x = 74,348,140,312.10
  5. Step 5: Solve for x
    x = 74,348,140,312.10/223,411.90
  6. Step 6: Final answer
    x = 332,785.05

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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.