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Finding the Fourth Proportional to 292,482.06, 438,723.23 and 105,493.56

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Solution

The fourth proportional to 292,482.06, 438,723.23 and 105,493.56 is: 158,240.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,482.06 : 438,723.23 = 105,493.56 : x
  2. Step 2: Convert to fraction form
    292,482.06/438,723.23 = 105,493.56/x
  3. Step 3: Cross multiply
    292,482.06x = 438,723.23 × 105,493.56
  4. Step 4: Simplify right side
    292,482.06x = 46,282,474,859.93
  5. Step 5: Solve for x
    x = 46,282,474,859.93/292,482.06
  6. Step 6: Final answer
    x = 158,240.39

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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.