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Finding the Fourth Proportional to 118,442.50, 163,451.07 and 64,727.52

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Solution

The fourth proportional to 118,442.50, 163,451.07 and 64,727.52 is: 89,324.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,442.50 : 163,451.07 = 64,727.52 : x
  2. Step 2: Convert to fraction form
    118,442.50/163,451.07 = 64,727.52/x
  3. Step 3: Cross multiply
    118,442.50x = 163,451.07 × 64,727.52
  4. Step 4: Simplify right side
    118,442.50x = 10,579,782,402.45
  5. Step 5: Solve for x
    x = 10,579,782,402.45/118,442.50
  6. Step 6: Final answer
    x = 89,324.21

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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.