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Finding the Fourth Proportional to 316,162.71, 474,268.91 and 91,526.63

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Solution

The fourth proportional to 316,162.71, 474,268.91 and 91,526.63 is: 137,297.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,162.71 : 474,268.91 = 91,526.63 : x
  2. Step 2: Convert to fraction form
    316,162.71/474,268.91 = 91,526.63/x
  3. Step 3: Cross multiply
    316,162.71x = 474,268.91 × 91,526.63
  4. Step 4: Simplify right side
    316,162.71x = 43,408,232,217.10
  5. Step 5: Solve for x
    x = 43,408,232,217.10/316,162.71
  6. Step 6: Final answer
    x = 137,297.13

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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.