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Finding the Fourth Proportional to 211,185.52, 316,882.36 and 98,873.34

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Solution

The fourth proportional to 211,185.52, 316,882.36 and 98,873.34 is: 148,358.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,185.52 : 316,882.36 = 98,873.34 : x
  2. Step 2: Convert to fraction form
    211,185.52/316,882.36 = 98,873.34/x
  3. Step 3: Cross multiply
    211,185.52x = 316,882.36 × 98,873.34
  4. Step 4: Simplify right side
    211,185.52x = 31,331,217,320.28
  5. Step 5: Solve for x
    x = 31,331,217,320.28/211,185.52
  6. Step 6: Final answer
    x = 148,358.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.