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Finding the Fourth Proportional to 111,285.48, 153,574.02 and 60,984.48

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Solution

The fourth proportional to 111,285.48, 153,574.02 and 60,984.48 is: 84,158.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,285.48 : 153,574.02 = 60,984.48 : x
  2. Step 2: Convert to fraction form
    111,285.48/153,574.02 = 60,984.48/x
  3. Step 3: Cross multiply
    111,285.48x = 153,574.02 × 60,984.48
  4. Step 4: Simplify right side
    111,285.48x = 9,365,631,751.21
  5. Step 5: Solve for x
    x = 9,365,631,751.21/111,285.48
  6. Step 6: Final answer
    x = 84,158.61

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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.