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Finding the Fourth Proportional to 468,579.42, 702,896.36 and 131,646.34

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Solution

The fourth proportional to 468,579.42, 702,896.36 and 131,646.34 is: 197,477.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,579.42 : 702,896.36 = 131,646.34 : x
  2. Step 2: Convert to fraction form
    468,579.42/702,896.36 = 131,646.34/x
  3. Step 3: Cross multiply
    468,579.42x = 702,896.36 × 131,646.34
  4. Step 4: Simplify right side
    468,579.42x = 92,533,733,193.32
  5. Step 5: Solve for x
    x = 92,533,733,193.32/468,579.42
  6. Step 6: Final answer
    x = 197,477.16

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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.