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Finding the Fourth Proportional to 228,574.68, 315,433.98 and 133,146.96

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Solution

The fourth proportional to 228,574.68, 315,433.98 and 133,146.96 is: 183,743.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,574.68 : 315,433.98 = 133,146.96 : x
  2. Step 2: Convert to fraction form
    228,574.68/315,433.98 = 133,146.96/x
  3. Step 3: Cross multiply
    228,574.68x = 315,433.98 × 133,146.96
  4. Step 4: Simplify right side
    228,574.68x = 41,999,075,517.70
  5. Step 5: Solve for x
    x = 41,999,075,517.70/228,574.68
  6. Step 6: Final answer
    x = 183,743.34

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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.