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Finding the Fourth Proportional to 375,399.90, 563,143.59 and 122,699.34

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Solution

The fourth proportional to 375,399.90, 563,143.59 and 122,699.34 is: 184,063.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,399.90 : 563,143.59 = 122,699.34 : x
  2. Step 2: Convert to fraction form
    375,399.90/563,143.59 = 122,699.34/x
  3. Step 3: Cross multiply
    375,399.90x = 563,143.59 × 122,699.34
  4. Step 4: Simplify right side
    375,399.90x = 69,097,346,818.23
  5. Step 5: Solve for x
    x = 69,097,346,818.23/375,399.90
  6. Step 6: Final answer
    x = 184,063.31

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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.