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Finding the Fourth Proportional to 119,508.92, 164,916.30 and 65,798.60

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Solution

The fourth proportional to 119,508.92, 164,916.30 and 65,798.60 is: 90,798.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,508.92 : 164,916.30 = 65,798.60 : x
  2. Step 2: Convert to fraction form
    119,508.92/164,916.30 = 65,798.60/x
  3. Step 3: Cross multiply
    119,508.92x = 164,916.30 × 65,798.60
  4. Step 4: Simplify right side
    119,508.92x = 10,851,261,657.18
  5. Step 5: Solve for x
    x = 10,851,261,657.18/119,508.92
  6. Step 6: Final answer
    x = 90,798.76

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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.