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Finding the Fourth Proportional to 64,110.60, 96,036.30 and 43,115.40

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Solution

The fourth proportional to 64,110.60, 96,036.30 and 43,115.40 is: 64,585.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,110.60 : 96,036.30 = 43,115.40 : x
  2. Step 2: Convert to fraction form
    64,110.60/96,036.30 = 43,115.40/x
  3. Step 3: Cross multiply
    64,110.60x = 96,036.30 × 43,115.40
  4. Step 4: Simplify right side
    64,110.60x = 4,140,643,489.02
  5. Step 5: Solve for x
    x = 4,140,643,489.02/64,110.60
  6. Step 6: Final answer
    x = 64,585.94

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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.