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Finding the Fourth Proportional to 73,029.60, 109,587.60 and 26,276.40

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Solution

The fourth proportional to 73,029.60, 109,587.60 and 26,276.40 is: 39,430.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,029.60 : 109,587.60 = 26,276.40 : x
  2. Step 2: Convert to fraction form
    73,029.60/109,587.60 = 26,276.40/x
  3. Step 3: Cross multiply
    73,029.60x = 109,587.60 × 26,276.40
  4. Step 4: Simplify right side
    73,029.60x = 2,879,567,612.64
  5. Step 5: Solve for x
    x = 2,879,567,612.64/73,029.60
  6. Step 6: Final answer
    x = 39,430.14

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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.