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Finding the Fourth Proportional to 169,820.80, 254,688.96 and 69,953.92

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Solution

The fourth proportional to 169,820.80, 254,688.96 and 69,953.92 is: 104,913.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,820.80 : 254,688.96 = 69,953.92 : x
  2. Step 2: Convert to fraction form
    169,820.80/254,688.96 = 69,953.92/x
  3. Step 3: Cross multiply
    169,820.80x = 254,688.96 × 69,953.92
  4. Step 4: Simplify right side
    169,820.80x = 17,816,491,132.72
  5. Step 5: Solve for x
    x = 17,816,491,132.72/169,820.80
  6. Step 6: Final answer
    x = 104,913.48

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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.