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Finding the Fourth Proportional to 212,803.66, 293,669.94 and 117,308.26

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Solution

The fourth proportional to 212,803.66, 293,669.94 and 117,308.26 is: 161,885.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,803.66 : 293,669.94 = 117,308.26 : x
  2. Step 2: Convert to fraction form
    212,803.66/293,669.94 = 117,308.26/x
  3. Step 3: Cross multiply
    212,803.66x = 293,669.94 × 117,308.26
  4. Step 4: Simplify right side
    212,803.66x = 34,449,909,675.70
  5. Step 5: Solve for x
    x = 34,449,909,675.70/212,803.66
  6. Step 6: Final answer
    x = 161,885.89

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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.