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Finding the Fourth Proportional to 88,851.72, 133,211.74 and 53,783.08

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Solution

The fourth proportional to 88,851.72, 133,211.74 and 53,783.08 is: 80,634.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,851.72 : 133,211.74 = 53,783.08 : x
  2. Step 2: Convert to fraction form
    88,851.72/133,211.74 = 53,783.08/x
  3. Step 3: Cross multiply
    88,851.72x = 133,211.74 × 53,783.08
  4. Step 4: Simplify right side
    88,851.72x = 7,164,537,669.36
  5. Step 5: Solve for x
    x = 7,164,537,669.36/88,851.72
  6. Step 6: Final answer
    x = 80,634.77

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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.