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Finding the Fourth Proportional to 113,304.70, 156,361.53 and 61,622.28

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Solution

The fourth proportional to 113,304.70, 156,361.53 and 61,622.28 is: 85,039.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,304.70 : 156,361.53 = 61,622.28 : x
  2. Step 2: Convert to fraction form
    113,304.70/156,361.53 = 61,622.28/x
  3. Step 3: Cross multiply
    113,304.70x = 156,361.53 × 61,622.28
  4. Step 4: Simplify right side
    113,304.70x = 9,635,353,674.78
  5. Step 5: Solve for x
    x = 9,635,353,674.78/113,304.70
  6. Step 6: Final answer
    x = 85,039.32

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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.