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Finding the Fourth Proportional to 221,483.40, 332,225.10 and 103,166.70

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Solution

The fourth proportional to 221,483.40, 332,225.10 and 103,166.70 is: 154,750.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,483.40 : 332,225.10 = 103,166.70 : x
  2. Step 2: Convert to fraction form
    221,483.40/332,225.10 = 103,166.70/x
  3. Step 3: Cross multiply
    221,483.40x = 332,225.10 × 103,166.70
  4. Step 4: Simplify right side
    221,483.40x = 34,274,567,224.17
  5. Step 5: Solve for x
    x = 34,274,567,224.17/221,483.40
  6. Step 6: Final answer
    x = 154,750.05

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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.