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Finding the Fourth Proportional to 340,361.60, 469,710.19 and 187,411.02

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Solution

The fourth proportional to 340,361.60, 469,710.19 and 187,411.02 is: 258,633.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,361.60 : 469,710.19 = 187,411.02 : x
  2. Step 2: Convert to fraction form
    340,361.60/469,710.19 = 187,411.02/x
  3. Step 3: Cross multiply
    340,361.60x = 469,710.19 × 187,411.02
  4. Step 4: Simplify right side
    340,361.60x = 88,028,864,285.14
  5. Step 5: Solve for x
    x = 88,028,864,285.14/340,361.60
  6. Step 6: Final answer
    x = 258,633.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.