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Finding the Fourth Proportional to 137,953,683, 190,367,392.86 and 79,174,980

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Solution

The fourth proportional to 137,953,683, 190,367,392.86 and 79,174,980 is: 109,256,485.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,953,683 : 190,367,392.86 = 79,174,980 : x
  2. Step 2: Convert to fraction form
    137,953,683/190,367,392.86 = 79,174,980/x
  3. Step 3: Cross multiply
    137,953,683x = 190,367,392.86 × 79,174,980
  4. Step 4: Simplify right side
    137,953,683x = 15,072,334,522,342,644
  5. Step 5: Solve for x
    x = 15,072,334,522,342,644/137,953,683
  6. Step 6: Final answer
    x = 109,256,485.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.