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Finding the Fourth Proportional to 336,806,500.80, 505,209,751.20 and 164,393,918.40

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Solution

The fourth proportional to 336,806,500.80, 505,209,751.20 and 164,393,918.40 is: 246,590,877.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,806,500.80 : 505,209,751.20 = 164,393,918.40 : x
  2. Step 2: Convert to fraction form
    336,806,500.80/505,209,751.20 = 164,393,918.40/x
  3. Step 3: Cross multiply
    336,806,500.80x = 505,209,751.20 × 164,393,918.40
  4. Step 4: Simplify right side
    336,806,500.80x = 83,053,410,613,657,104
  5. Step 5: Solve for x
    x = 83,053,410,613,657,104/336,806,500.80
  6. Step 6: Final answer
    x = 246,590,877.60

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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.