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Finding the Fourth Proportional to 118,551.60, 177,836.72 and 39,666.11

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Solution

The fourth proportional to 118,551.60, 177,836.72 and 39,666.11 is: 59,502.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,551.60 : 177,836.72 = 39,666.11 : x
  2. Step 2: Convert to fraction form
    118,551.60/177,836.72 = 39,666.11/x
  3. Step 3: Cross multiply
    118,551.60x = 177,836.72 × 39,666.11
  4. Step 4: Simplify right side
    118,551.60x = 7,054,089,810.05
  5. Step 5: Solve for x
    x = 7,054,089,810.05/118,551.60
  6. Step 6: Final answer
    x = 59,502.27

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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.