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Finding the Fourth Proportional to 118,230.57, 163,156.01 and 64,514.21

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Solution

The fourth proportional to 118,230.57, 163,156.01 and 64,514.21 is: 89,028.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,230.57 : 163,156.01 = 64,514.21 : x
  2. Step 2: Convert to fraction form
    118,230.57/163,156.01 = 64,514.21/x
  3. Step 3: Cross multiply
    118,230.57x = 163,156.01 × 64,514.21
  4. Step 4: Simplify right side
    118,230.57x = 10,525,879,953.55
  5. Step 5: Solve for x
    x = 10,525,879,953.55/118,230.57
  6. Step 6: Final answer
    x = 89,028.41

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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.