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Finding the Fourth Proportional to 163,161.42, 244,712.92 and 103,820.82

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Solution

The fourth proportional to 163,161.42, 244,712.92 and 103,820.82 is: 155,712.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,161.42 : 244,712.92 = 103,820.82 : x
  2. Step 2: Convert to fraction form
    163,161.42/244,712.92 = 103,820.82/x
  3. Step 3: Cross multiply
    163,161.42x = 244,712.92 × 103,820.82
  4. Step 4: Simplify right side
    163,161.42x = 25,406,296,018.99
  5. Step 5: Solve for x
    x = 25,406,296,018.99/163,161.42
  6. Step 6: Final answer
    x = 155,712.64

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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.