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Finding the Fourth Proportional to 221,746.50, 305,650.80 and 173,263.68

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Solution

The fourth proportional to 221,746.50, 305,650.80 and 173,263.68 is: 238,823.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,746.50 : 305,650.80 = 173,263.68 : x
  2. Step 2: Convert to fraction form
    221,746.50/305,650.80 = 173,263.68/x
  3. Step 3: Cross multiply
    221,746.50x = 305,650.80 × 173,263.68
  4. Step 4: Simplify right side
    221,746.50x = 52,958,182,402.94
  5. Step 5: Solve for x
    x = 52,958,182,402.94/221,746.50
  6. Step 6: Final answer
    x = 238,823.08

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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.