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Finding the Fourth Proportional to 210,959.73, 291,124.53 and 115,466.94

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Solution

The fourth proportional to 210,959.73, 291,124.53 and 115,466.94 is: 159,344.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,959.73 : 291,124.53 = 115,466.94 : x
  2. Step 2: Convert to fraction form
    210,959.73/291,124.53 = 115,466.94/x
  3. Step 3: Cross multiply
    210,959.73x = 291,124.53 × 115,466.94
  4. Step 4: Simplify right side
    210,959.73x = 33,615,258,638.04
  5. Step 5: Solve for x
    x = 33,615,258,638.04/210,959.73
  6. Step 6: Final answer
    x = 159,344.43

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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.