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Finding the Fourth Proportional to 340,386.48, 510,579.72 and 91,062

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Solution

The fourth proportional to 340,386.48, 510,579.72 and 91,062 is: 136,593

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,386.48 : 510,579.72 = 91,062 : x
  2. Step 2: Convert to fraction form
    340,386.48/510,579.72 = 91,062/x
  3. Step 3: Cross multiply
    340,386.48x = 510,579.72 × 91,062
  4. Step 4: Simplify right side
    340,386.48x = 46,494,410,462.64
  5. Step 5: Solve for x
    x = 46,494,410,462.64/340,386.48
  6. Step 6: Final answer
    x = 136,593

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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.