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Finding the Fourth Proportional to 373,055,999.60, 559,583,999.40 and 130,687,410.80

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Solution

The fourth proportional to 373,055,999.60, 559,583,999.40 and 130,687,410.80 is: 196,031,116.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,055,999.60 : 559,583,999.40 = 130,687,410.80 : x
  2. Step 2: Convert to fraction form
    373,055,999.60/559,583,999.40 = 130,687,410.80/x
  3. Step 3: Cross multiply
    373,055,999.60x = 559,583,999.40 × 130,687,410.80
  4. Step 4: Simplify right side
    373,055,999.60x = 73,130,584,006,694,752
  5. Step 5: Solve for x
    x = 73,130,584,006,694,752/373,055,999.60
  6. Step 6: Final answer
    x = 196,031,116.20

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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.