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Finding the Fourth Proportional to 213,233.82, 319,156.32 and 157,051.80

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Solution

The fourth proportional to 213,233.82, 319,156.32 and 157,051.80 is: 235,066.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,233.82 : 319,156.32 = 157,051.80 : x
  2. Step 2: Convert to fraction form
    213,233.82/319,156.32 = 157,051.80/x
  3. Step 3: Cross multiply
    213,233.82x = 319,156.32 × 157,051.80
  4. Step 4: Simplify right side
    213,233.82x = 50,124,074,537.38
  5. Step 5: Solve for x
    x = 50,124,074,537.38/213,233.82
  6. Step 6: Final answer
    x = 235,066.25

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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.