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Finding the Fourth Proportional to 111,547.86, 153,936.24 and 60,560.60

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Solution

The fourth proportional to 111,547.86, 153,936.24 and 60,560.60 is: 83,573.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,547.86 : 153,936.24 = 60,560.60 : x
  2. Step 2: Convert to fraction form
    111,547.86/153,936.24 = 60,560.60/x
  3. Step 3: Cross multiply
    111,547.86x = 153,936.24 × 60,560.60
  4. Step 4: Simplify right side
    111,547.86x = 9,322,471,056.14
  5. Step 5: Solve for x
    x = 9,322,471,056.14/111,547.86
  6. Step 6: Final answer
    x = 83,573.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.