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Finding the Fourth Proportional to 219,445.92, 329,117.76 and 61,689.60

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Solution

The fourth proportional to 219,445.92, 329,117.76 and 61,689.60 is: 92,520.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,445.92 : 329,117.76 = 61,689.60 : x
  2. Step 2: Convert to fraction form
    219,445.92/329,117.76 = 61,689.60/x
  3. Step 3: Cross multiply
    219,445.92x = 329,117.76 × 61,689.60
  4. Step 4: Simplify right side
    219,445.92x = 20,303,142,967.30
  5. Step 5: Solve for x
    x = 20,303,142,967.30/219,445.92
  6. Step 6: Final answer
    x = 92,520.03

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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.