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Finding the Fourth Proportional to 111,047.64, 153,236.66 and 63,292.07

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Solution

The fourth proportional to 111,047.64, 153,236.66 and 63,292.07 is: 87,337.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,047.64 : 153,236.66 = 63,292.07 : x
  2. Step 2: Convert to fraction form
    111,047.64/153,236.66 = 63,292.07/x
  3. Step 3: Cross multiply
    111,047.64x = 153,236.66 × 63,292.07
  4. Step 4: Simplify right side
    111,047.64x = 9,698,664,328.64
  5. Step 5: Solve for x
    x = 9,698,664,328.64/111,047.64
  6. Step 6: Final answer
    x = 87,337.87

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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.