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Finding the Fourth Proportional to 166,754,927.80, 250,132,391.70 and 45,586,379.80

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Solution

The fourth proportional to 166,754,927.80, 250,132,391.70 and 45,586,379.80 is: 68,379,569.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,754,927.80 : 250,132,391.70 = 45,586,379.80 : x
  2. Step 2: Convert to fraction form
    166,754,927.80/250,132,391.70 = 45,586,379.80/x
  3. Step 3: Cross multiply
    166,754,927.80x = 250,132,391.70 × 45,586,379.80
  4. Step 4: Simplify right side
    166,754,927.80x = 11,402,630,208,318,566
  5. Step 5: Solve for x
    x = 11,402,630,208,318,566/166,754,927.80
  6. Step 6: Final answer
    x = 68,379,569.70

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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.