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Finding the Fourth Proportional to 671,994.23, 1,007,978.38 and 166,556.25

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Solution

The fourth proportional to 671,994.23, 1,007,978.38 and 166,556.25 is: 249,831.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,994.23 : 1,007,978.38 = 166,556.25 : x
  2. Step 2: Convert to fraction form
    671,994.23/1,007,978.38 = 166,556.25/x
  3. Step 3: Cross multiply
    671,994.23x = 1,007,978.38 × 166,556.25
  4. Step 4: Simplify right side
    671,994.23x = 167,885,098,637.48
  5. Step 5: Solve for x
    x = 167,885,098,637.48/671,994.23
  6. Step 6: Final answer
    x = 249,831.16

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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.