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Finding the Fourth Proportional to 374,253.30, 516,470.36 and 213,108.48

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Solution

The fourth proportional to 374,253.30, 516,470.36 and 213,108.48 is: 294,090.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,253.30 : 516,470.36 = 213,108.48 : x
  2. Step 2: Convert to fraction form
    374,253.30/516,470.36 = 213,108.48/x
  3. Step 3: Cross multiply
    374,253.30x = 516,470.36 × 213,108.48
  4. Step 4: Simplify right side
    374,253.30x = 110,064,212,319.11
  5. Step 5: Solve for x
    x = 110,064,212,319.11/374,253.30
  6. Step 6: Final answer
    x = 294,090.16

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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.