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Finding the Fourth Proportional to 111,347.88, 153,666.36 and 66,052.68

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Solution

The fourth proportional to 111,347.88, 153,666.36 and 66,052.68 is: 91,156.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,347.88 : 153,666.36 = 66,052.68 : x
  2. Step 2: Convert to fraction form
    111,347.88/153,666.36 = 66,052.68/x
  3. Step 3: Cross multiply
    111,347.88x = 153,666.36 × 66,052.68
  4. Step 4: Simplify right side
    111,347.88x = 10,150,074,903.84
  5. Step 5: Solve for x
    x = 10,150,074,903.84/111,347.88
  6. Step 6: Final answer
    x = 91,156.43

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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.