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Finding the Fourth Proportional to 340,359.40, 510,539.10 and 103,671.33

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Solution

The fourth proportional to 340,359.40, 510,539.10 and 103,671.33 is: 155,507.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,359.40 : 510,539.10 = 103,671.33 : x
  2. Step 2: Convert to fraction form
    340,359.40/510,539.10 = 103,671.33/x
  3. Step 3: Cross multiply
    340,359.40x = 510,539.10 × 103,671.33
  4. Step 4: Simplify right side
    340,359.40x = 52,928,267,514.00
  5. Step 5: Solve for x
    x = 52,928,267,514.00/340,359.40
  6. Step 6: Final answer
    x = 155,507.00

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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.