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Finding the Fourth Proportional to 163,919.16, 226,114.20 and 103,468.32

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Solution

The fourth proportional to 163,919.16, 226,114.20 and 103,468.32 is: 142,726.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,919.16 : 226,114.20 = 103,468.32 : x
  2. Step 2: Convert to fraction form
    163,919.16/226,114.20 = 103,468.32/x
  3. Step 3: Cross multiply
    163,919.16x = 226,114.20 × 103,468.32
  4. Step 4: Simplify right side
    163,919.16x = 23,395,656,402.14
  5. Step 5: Solve for x
    x = 23,395,656,402.14/163,919.16
  6. Step 6: Final answer
    x = 142,726.80

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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.