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Finding the Fourth Proportional to 99,922,483.47, 137,850,802.92 and 66,893,374.06

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Solution

The fourth proportional to 99,922,483.47, 137,850,802.92 and 66,893,374.06 is: 92,284,589.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,922,483.47 : 137,850,802.92 = 66,893,374.06 : x
  2. Step 2: Convert to fraction form
    99,922,483.47/137,850,802.92 = 66,893,374.06/x
  3. Step 3: Cross multiply
    99,922,483.47x = 137,850,802.92 × 66,893,374.06
  4. Step 4: Simplify right side
    99,922,483.47x = 9,221,305,324,429,880
  5. Step 5: Solve for x
    x = 9,221,305,324,429,880/99,922,483.47
  6. Step 6: Final answer
    x = 92,284,589.06

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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.