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Finding the Fourth Proportional to 169,946,887.62, 253,952,871.56 and 127,605,551.88

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Solution

The fourth proportional to 169,946,887.62, 253,952,871.56 and 127,605,551.88 is: 190,681,905.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,946,887.62 : 253,952,871.56 = 127,605,551.88 : x
  2. Step 2: Convert to fraction form
    169,946,887.62/253,952,871.56 = 127,605,551.88/x
  3. Step 3: Cross multiply
    169,946,887.62x = 253,952,871.56 × 127,605,551.88
  4. Step 4: Simplify right side
    169,946,887.62x = 32,405,796,326,924,556
  5. Step 5: Solve for x
    x = 32,405,796,326,924,556/169,946,887.62
  6. Step 6: Final answer
    x = 190,681,905.27

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.