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Finding the Fourth Proportional to 112,347,123.90, 168,268,743.45 and 112,347,123.90

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Solution

The fourth proportional to 112,347,123.90, 168,268,743.45 and 112,347,123.90 is: 168,268,743.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,347,123.90 : 168,268,743.45 = 112,347,123.90 : x
  2. Step 2: Convert to fraction form
    112,347,123.90/168,268,743.45 = 112,347,123.90/x
  3. Step 3: Cross multiply
    112,347,123.90x = 168,268,743.45 × 112,347,123.90
  4. Step 4: Simplify right side
    112,347,123.90x = 18,904,509,368,874,464
  5. Step 5: Solve for x
    x = 18,904,509,368,874,464/112,347,123.90
  6. Step 6: Final answer
    x = 168,268,743.45

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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.