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Finding the Fourth Proportional to 139,968,269.80, 209,952,404.70 and 94,282,714.60

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Solution

The fourth proportional to 139,968,269.80, 209,952,404.70 and 94,282,714.60 is: 141,424,071.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,269.80 : 209,952,404.70 = 94,282,714.60 : x
  2. Step 2: Convert to fraction form
    139,968,269.80/209,952,404.70 = 94,282,714.60/x
  3. Step 3: Cross multiply
    139,968,269.80x = 209,952,404.70 × 94,282,714.60
  4. Step 4: Simplify right side
    139,968,269.80x = 19,794,882,651,913,796
  5. Step 5: Solve for x
    x = 19,794,882,651,913,796/139,968,269.80
  6. Step 6: Final answer
    x = 141,424,071.90

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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.