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Finding the Fourth Proportional to 53,898,951.80, 80,851,926.90 and 28,389,783.80

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Solution

The fourth proportional to 53,898,951.80, 80,851,926.90 and 28,389,783.80 is: 42,586,518.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,898,951.80 : 80,851,926.90 = 28,389,783.80 : x
  2. Step 2: Convert to fraction form
    53,898,951.80/80,851,926.90 = 28,389,783.80/x
  3. Step 3: Cross multiply
    53,898,951.80x = 80,851,926.90 × 28,389,783.80
  4. Step 4: Simplify right side
    53,898,951.80x = 2,295,368,724,504,404.50
  5. Step 5: Solve for x
    x = 2,295,368,724,504,404.50/53,898,951.80
  6. Step 6: Final answer
    x = 42,586,518.81

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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.