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Finding the Fourth Proportional to 212,775.66, 293,630.45 and 117,284.45

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Solution

The fourth proportional to 212,775.66, 293,630.45 and 117,284.45 is: 161,852.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,775.66 : 293,630.45 = 117,284.45 : x
  2. Step 2: Convert to fraction form
    212,775.66/293,630.45 = 117,284.45/x
  3. Step 3: Cross multiply
    212,775.66x = 293,630.45 × 117,284.45
  4. Step 4: Simplify right side
    212,775.66x = 34,438,283,776.93
  5. Step 5: Solve for x
    x = 34,438,283,776.93/212,775.66
  6. Step 6: Final answer
    x = 161,852.55

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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.