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Finding the Fourth Proportional to 178,098,286.80, 266,580,559.80 and 127,079,950.80

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Solution

The fourth proportional to 178,098,286.80, 266,580,559.80 and 127,079,950.80 is: 190,215,442.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,098,286.80 : 266,580,559.80 = 127,079,950.80 : x
  2. Step 2: Convert to fraction form
    178,098,286.80/266,580,559.80 = 127,079,950.80/x
  3. Step 3: Cross multiply
    178,098,286.80x = 266,580,559.80 × 127,079,950.80
  4. Step 4: Simplify right side
    178,098,286.80x = 33,877,044,423,620,460
  5. Step 5: Solve for x
    x = 33,877,044,423,620,460/178,098,286.80
  6. Step 6: Final answer
    x = 190,215,442.45

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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.