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Finding the Fourth Proportional to 123,008,573.57, 169,755,374.43 and 68,007,973.01

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Solution

The fourth proportional to 123,008,573.57, 169,755,374.43 and 68,007,973.01 is: 93,852,961.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,008,573.57 : 169,755,374.43 = 68,007,973.01 : x
  2. Step 2: Convert to fraction form
    123,008,573.57/169,755,374.43 = 68,007,973.01/x
  3. Step 3: Cross multiply
    123,008,573.57x = 169,755,374.43 × 68,007,973.01
  4. Step 4: Simplify right side
    123,008,573.57x = 11,544,718,921,689,106
  5. Step 5: Solve for x
    x = 11,544,718,921,689,106/123,008,573.57
  6. Step 6: Final answer
    x = 93,852,961.52

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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.