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Finding the Fourth Proportional to 212,888.16, 293,770.62 and 117,392.76

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Solution

The fourth proportional to 212,888.16, 293,770.62 and 117,392.76 is: 161,993.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,888.16 : 293,770.62 = 117,392.76 : x
  2. Step 2: Convert to fraction form
    212,888.16/293,770.62 = 117,392.76/x
  3. Step 3: Cross multiply
    212,888.16x = 293,770.62 × 117,392.76
  4. Step 4: Simplify right side
    212,888.16x = 34,486,543,888.71
  5. Step 5: Solve for x
    x = 34,486,543,888.71/212,888.16
  6. Step 6: Final answer
    x = 161,993.71

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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.