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Finding the Fourth Proportional to 115,104,940.65, 172,657,410.98 and 115,104,940.65

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Solution

The fourth proportional to 115,104,940.65, 172,657,410.98 and 115,104,940.65 is: 172,657,410.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,104,940.65 : 172,657,410.98 = 115,104,940.65 : x
  2. Step 2: Convert to fraction form
    115,104,940.65/172,657,410.98 = 115,104,940.65/x
  3. Step 3: Cross multiply
    115,104,940.65x = 172,657,410.98 × 115,104,940.65
  4. Step 4: Simplify right side
    115,104,940.65x = 19,873,721,043,060,032
  5. Step 5: Solve for x
    x = 19,873,721,043,060,032/115,104,940.65
  6. Step 6: Final answer
    x = 172,657,410.98

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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.