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Finding the Fourth Proportional to 238,364.49, 328,861.53 and 136,352.78

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Solution

The fourth proportional to 238,364.49, 328,861.53 and 136,352.78 is: 188,120.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,364.49 : 328,861.53 = 136,352.78 : x
  2. Step 2: Convert to fraction form
    238,364.49/328,861.53 = 136,352.78/x
  3. Step 3: Cross multiply
    238,364.49x = 328,861.53 × 136,352.78
  4. Step 4: Simplify right side
    238,364.49x = 44,841,182,206.25
  5. Step 5: Solve for x
    x = 44,841,182,206.25/238,364.49
  6. Step 6: Final answer
    x = 188,120.23

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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.