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Finding the Fourth Proportional to 203,219.70, 304,829.55 and 92,411.70

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Solution

The fourth proportional to 203,219.70, 304,829.55 and 92,411.70 is: 138,617.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,219.70 : 304,829.55 = 92,411.70 : x
  2. Step 2: Convert to fraction form
    203,219.70/304,829.55 = 92,411.70/x
  3. Step 3: Cross multiply
    203,219.70x = 304,829.55 × 92,411.70
  4. Step 4: Simplify right side
    203,219.70x = 28,169,816,925.74
  5. Step 5: Solve for x
    x = 28,169,816,925.74/203,219.70
  6. Step 6: Final answer
    x = 138,617.55

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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.