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Finding the Fourth Proportional to 340,513.01, 510,592.16 and 127,105.45

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Solution

The fourth proportional to 340,513.01, 510,592.16 and 127,105.45 is: 190,591.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,513.01 : 510,592.16 = 127,105.45 : x
  2. Step 2: Convert to fraction form
    340,513.01/510,592.16 = 127,105.45/x
  3. Step 3: Cross multiply
    340,513.01x = 510,592.16 × 127,105.45
  4. Step 4: Simplify right side
    340,513.01x = 64,899,047,461.67
  5. Step 5: Solve for x
    x = 64,899,047,461.67/340,513.01
  6. Step 6: Final answer
    x = 190,591.97

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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.