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Finding the Fourth Proportional to 292,474.86, 438,777.99 and 105,486.36

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Solution

The fourth proportional to 292,474.86, 438,777.99 and 105,486.36 is: 158,253.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,474.86 : 438,777.99 = 105,486.36 : x
  2. Step 2: Convert to fraction form
    292,474.86/438,777.99 = 105,486.36/x
  3. Step 3: Cross multiply
    292,474.86x = 438,777.99 × 105,486.36
  4. Step 4: Simplify right side
    292,474.86x = 46,285,093,013.22
  5. Step 5: Solve for x
    x = 46,285,093,013.22/292,474.86
  6. Step 6: Final answer
    x = 158,253.24

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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.