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Finding the Fourth Proportional to 251,001.51, 376,502.40 and 157,572.87

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Solution

The fourth proportional to 251,001.51, 376,502.40 and 157,572.87 is: 236,359.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,001.51 : 376,502.40 = 157,572.87 : x
  2. Step 2: Convert to fraction form
    251,001.51/376,502.40 = 157,572.87/x
  3. Step 3: Cross multiply
    251,001.51x = 376,502.40 × 157,572.87
  4. Step 4: Simplify right side
    251,001.51x = 59,326,563,729.89
  5. Step 5: Solve for x
    x = 59,326,563,729.89/251,001.51
  6. Step 6: Final answer
    x = 236,359.39

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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.