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Finding the Fourth Proportional to 73,126.60, 109,664.30 and 38,054.60

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Solution

The fourth proportional to 73,126.60, 109,664.30 and 38,054.60 is: 57,068.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,126.60 : 109,664.30 = 38,054.60 : x
  2. Step 2: Convert to fraction form
    73,126.60/109,664.30 = 38,054.60/x
  3. Step 3: Cross multiply
    73,126.60x = 109,664.30 × 38,054.60
  4. Step 4: Simplify right side
    73,126.60x = 4,173,231,070.78
  5. Step 5: Solve for x
    x = 4,173,231,070.78/73,126.60
  6. Step 6: Final answer
    x = 57,068.58

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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.