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Finding the Fourth Proportional to 118,783.77, 178,050.48 and 43,855.93

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Solution

The fourth proportional to 118,783.77, 178,050.48 and 43,855.93 is: 65,737.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,783.77 : 178,050.48 = 43,855.93 : x
  2. Step 2: Convert to fraction form
    118,783.77/178,050.48 = 43,855.93/x
  3. Step 3: Cross multiply
    118,783.77x = 178,050.48 × 43,855.93
  4. Step 4: Simplify right side
    118,783.77x = 7,808,569,387.35
  5. Step 5: Solve for x
    x = 7,808,569,387.35/118,783.77
  6. Step 6: Final answer
    x = 65,737.68

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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.