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Finding the Fourth Proportional to 203,152.60, 304,901.70 and 91,005.40

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Solution

The fourth proportional to 203,152.60, 304,901.70 and 91,005.40 is: 136,585.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,152.60 : 304,901.70 = 91,005.40 : x
  2. Step 2: Convert to fraction form
    203,152.60/304,901.70 = 91,005.40/x
  3. Step 3: Cross multiply
    203,152.60x = 304,901.70 × 91,005.40
  4. Step 4: Simplify right side
    203,152.60x = 27,747,701,169.18
  5. Step 5: Solve for x
    x = 27,747,701,169.18/203,152.60
  6. Step 6: Final answer
    x = 136,585.51

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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.