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Finding the Fourth Proportional to 238,770.74, 329,527.76 and 136,809.72

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Solution

The fourth proportional to 238,770.74, 329,527.76 and 136,809.72 is: 188,811.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,770.74 : 329,527.76 = 136,809.72 : x
  2. Step 2: Convert to fraction form
    238,770.74/329,527.76 = 136,809.72/x
  3. Step 3: Cross multiply
    238,770.74x = 329,527.76 × 136,809.72
  4. Step 4: Simplify right side
    238,770.74x = 45,082,601,415.32
  5. Step 5: Solve for x
    x = 45,082,601,415.32/238,770.74
  6. Step 6: Final answer
    x = 188,811.25

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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.