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Finding the Fourth Proportional to 110,939.64, 153,096.78 and 60,638.64

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Solution

The fourth proportional to 110,939.64, 153,096.78 and 60,638.64 is: 83,681.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,939.64 : 153,096.78 = 60,638.64 : x
  2. Step 2: Convert to fraction form
    110,939.64/153,096.78 = 60,638.64/x
  3. Step 3: Cross multiply
    110,939.64x = 153,096.78 × 60,638.64
  4. Step 4: Simplify right side
    110,939.64x = 9,283,580,527.58
  5. Step 5: Solve for x
    x = 9,283,580,527.58/110,939.64
  6. Step 6: Final answer
    x = 83,681.37

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1.5x scale

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.