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Finding the Fourth Proportional to 61,054.86, 91,463.46 and 45,015.18

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Solution

The fourth proportional to 61,054.86, 91,463.46 and 45,015.18 is: 67,435.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,054.86 : 91,463.46 = 45,015.18 : x
  2. Step 2: Convert to fraction form
    61,054.86/91,463.46 = 45,015.18/x
  3. Step 3: Cross multiply
    61,054.86x = 91,463.46 × 45,015.18
  4. Step 4: Simplify right side
    61,054.86x = 4,117,244,115.32
  5. Step 5: Solve for x
    x = 4,117,244,115.32/61,054.86
  6. Step 6: Final answer
    x = 67,435.16

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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.