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Finding the Fourth Proportional to 336,806,489.80, 505,209,734.70 and 164,393,907.40

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Solution

The fourth proportional to 336,806,489.80, 505,209,734.70 and 164,393,907.40 is: 246,590,861.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,806,489.80 : 505,209,734.70 = 164,393,907.40 : x
  2. Step 2: Convert to fraction form
    336,806,489.80/505,209,734.70 = 164,393,907.40/x
  3. Step 3: Cross multiply
    336,806,489.80x = 505,209,734.70 × 164,393,907.40
  4. Step 4: Simplify right side
    336,806,489.80x = 83,053,402,343,850,368
  5. Step 5: Solve for x
    x = 83,053,402,343,850,368/336,806,489.80
  6. Step 6: Final answer
    x = 246,590,861.10

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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.