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Finding the Fourth Proportional to 356,412.78, 534,574.55 and 116,506.58

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Solution

The fourth proportional to 356,412.78, 534,574.55 and 116,506.58 is: 174,745.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,412.78 : 534,574.55 = 116,506.58 : x
  2. Step 2: Convert to fraction form
    356,412.78/534,574.55 = 116,506.58/x
  3. Step 3: Cross multiply
    356,412.78x = 534,574.55 × 116,506.58
  4. Step 4: Simplify right side
    356,412.78x = 62,281,449,320.13
  5. Step 5: Solve for x
    x = 62,281,449,320.13/356,412.78
  6. Step 6: Final answer
    x = 174,745.28

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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.