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Finding the Fourth Proportional to 292,379.91, 403,484.16 and 158,243.91

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Solution

The fourth proportional to 292,379.91, 403,484.16 and 158,243.91 is: 218,376.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,379.91 : 403,484.16 = 158,243.91 : x
  2. Step 2: Convert to fraction form
    292,379.91/403,484.16 = 158,243.91/x
  3. Step 3: Cross multiply
    292,379.91x = 403,484.16 × 158,243.91
  4. Step 4: Simplify right side
    292,379.91x = 63,848,911,101.47
  5. Step 5: Solve for x
    x = 63,848,911,101.47/292,379.91
  6. Step 6: Final answer
    x = 218,376.53

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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.