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Finding the Fourth Proportional to 374,739.88, 562,110.78 and 153,123.88

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Solution

The fourth proportional to 374,739.88, 562,110.78 and 153,123.88 is: 229,686.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,739.88 : 562,110.78 = 153,123.88 : x
  2. Step 2: Convert to fraction form
    374,739.88/562,110.78 = 153,123.88/x
  3. Step 3: Cross multiply
    374,739.88x = 562,110.78 × 153,123.88
  4. Step 4: Simplify right side
    374,739.88x = 86,072,583,623.43
  5. Step 5: Solve for x
    x = 86,072,583,623.43/374,739.88
  6. Step 6: Final answer
    x = 229,686.21

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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.