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Finding the Fourth Proportional to 210,959.74, 291,122.20 and 114,161.46

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Solution

The fourth proportional to 210,959.74, 291,122.20 and 114,161.46 is: 157,541.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,959.74 : 291,122.20 = 114,161.46 : x
  2. Step 2: Convert to fraction form
    210,959.74/291,122.20 = 114,161.46/x
  3. Step 3: Cross multiply
    210,959.74x = 291,122.20 × 114,161.46
  4. Step 4: Simplify right side
    210,959.74x = 33,234,935,390.41
  5. Step 5: Solve for x
    x = 33,234,935,390.41/210,959.74
  6. Step 6: Final answer
    x = 157,541.60

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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.