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Finding the Fourth Proportional to 64,356.60, 96,534.90 and 43,361.40

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Solution

The fourth proportional to 64,356.60, 96,534.90 and 43,361.40 is: 65,042.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,356.60 : 96,534.90 = 43,361.40 : x
  2. Step 2: Convert to fraction form
    64,356.60/96,534.90 = 43,361.40/x
  3. Step 3: Cross multiply
    64,356.60x = 96,534.90 × 43,361.40
  4. Step 4: Simplify right side
    64,356.60x = 4,185,888,412.86
  5. Step 5: Solve for x
    x = 4,185,888,412.86/64,356.60
  6. Step 6: Final answer
    x = 65,042.10

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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.