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Finding the Fourth Proportional to 118,868.46, 178,524.77 and 104,641.98

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Solution

The fourth proportional to 118,868.46, 178,524.77 and 104,641.98 is: 157,158.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,868.46 : 178,524.77 = 104,641.98 : x
  2. Step 2: Convert to fraction form
    118,868.46/178,524.77 = 104,641.98/x
  3. Step 3: Cross multiply
    118,868.46x = 178,524.77 × 104,641.98
  4. Step 4: Simplify right side
    118,868.46x = 18,681,184,888.63
  5. Step 5: Solve for x
    x = 18,681,184,888.63/118,868.46
  6. Step 6: Final answer
    x = 157,158.47

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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.