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Finding the Fourth Proportional to 212,539.70, 293,306.70 and 117,046.76

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Solution

The fourth proportional to 212,539.70, 293,306.70 and 117,046.76 is: 161,525.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,539.70 : 293,306.70 = 117,046.76 : x
  2. Step 2: Convert to fraction form
    212,539.70/293,306.70 = 117,046.76/x
  3. Step 3: Cross multiply
    212,539.70x = 293,306.70 × 117,046.76
  4. Step 4: Simplify right side
    212,539.70x = 34,330,598,921.29
  5. Step 5: Solve for x
    x = 34,330,598,921.29/212,539.70
  6. Step 6: Final answer
    x = 161,525.58

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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.