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Finding the Fourth Proportional to 92,468.40, 138,703.52 and 29,287.32

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Solution

The fourth proportional to 92,468.40, 138,703.52 and 29,287.32 is: 43,931.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,468.40 : 138,703.52 = 29,287.32 : x
  2. Step 2: Convert to fraction form
    92,468.40/138,703.52 = 29,287.32/x
  3. Step 3: Cross multiply
    92,468.40x = 138,703.52 × 29,287.32
  4. Step 4: Simplify right side
    92,468.40x = 4,062,254,448.58
  5. Step 5: Solve for x
    x = 4,062,254,448.58/92,468.40
  6. Step 6: Final answer
    x = 43,931.27

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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.