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Finding the Fourth Proportional to 211,275.74, 316,846.72 and 69,088.17

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Solution

The fourth proportional to 211,275.74, 316,846.72 and 69,088.17 is: 103,610.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,275.74 : 316,846.72 = 69,088.17 : x
  2. Step 2: Convert to fraction form
    211,275.74/316,846.72 = 69,088.17/x
  3. Step 3: Cross multiply
    211,275.74x = 316,846.72 × 69,088.17
  4. Step 4: Simplify right side
    211,275.74x = 21,890,359,882.58
  5. Step 5: Solve for x
    x = 21,890,359,882.58/211,275.74
  6. Step 6: Final answer
    x = 103,610.38

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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.