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Finding the Fourth Proportional to 212,484, 293,227.92 and 118,276

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Solution

The fourth proportional to 212,484, 293,227.92 and 118,276 is: 163,220.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,484 : 293,227.92 = 118,276 : x
  2. Step 2: Convert to fraction form
    212,484/293,227.92 = 118,276/x
  3. Step 3: Cross multiply
    212,484x = 293,227.92 × 118,276
  4. Step 4: Simplify right side
    212,484x = 34,681,825,465.92
  5. Step 5: Solve for x
    x = 34,681,825,465.92/212,484
  6. Step 6: Final answer
    x = 163,220.88

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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.