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Finding the Fourth Proportional to 317,228.72, 475,871 and 89,526.36

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Solution

The fourth proportional to 317,228.72, 475,871 and 89,526.36 is: 134,297.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,228.72 : 475,871 = 89,526.36 : x
  2. Step 2: Convert to fraction form
    317,228.72/475,871 = 89,526.36/x
  3. Step 3: Cross multiply
    317,228.72x = 475,871 × 89,526.36
  4. Step 4: Simplify right side
    317,228.72x = 42,602,998,459.56
  5. Step 5: Solve for x
    x = 42,602,998,459.56/317,228.72
  6. Step 6: Final answer
    x = 134,297.42

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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.