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Finding the Fourth Proportional to 356,256.63, 534,388.59 and 90,017.48

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Solution

The fourth proportional to 356,256.63, 534,388.59 and 90,017.48 is: 135,027.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,256.63 : 534,388.59 = 90,017.48 : x
  2. Step 2: Convert to fraction form
    356,256.63/534,388.59 = 90,017.48/x
  3. Step 3: Cross multiply
    356,256.63x = 534,388.59 × 90,017.48
  4. Step 4: Simplify right side
    356,256.63x = 48,104,312,542.59
  5. Step 5: Solve for x
    x = 48,104,312,542.59/356,256.63
  6. Step 6: Final answer
    x = 135,027.14

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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.