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Finding the Fourth Proportional to 158,736.70, 238,182.90 and 74,503.72

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Solution

The fourth proportional to 158,736.70, 238,182.90 and 74,503.72 is: 111,792.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,736.70 : 238,182.90 = 74,503.72 : x
  2. Step 2: Convert to fraction form
    158,736.70/238,182.90 = 74,503.72/x
  3. Step 3: Cross multiply
    158,736.70x = 238,182.90 × 74,503.72
  4. Step 4: Simplify right side
    158,736.70x = 17,745,512,090.39
  5. Step 5: Solve for x
    x = 17,745,512,090.39/158,736.70
  6. Step 6: Final answer
    x = 111,792.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.