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Finding the Fourth Proportional to 577,373,999.70, 866,259,287.55 and 168,490,146.90

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Solution

The fourth proportional to 577,373,999.70, 866,259,287.55 and 168,490,146.90 is: 252,793,085.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,373,999.70 : 866,259,287.55 = 168,490,146.90 : x
  2. Step 2: Convert to fraction form
    577,373,999.70/866,259,287.55 = 168,490,146.90/x
  3. Step 3: Cross multiply
    577,373,999.70x = 866,259,287.55 × 168,490,146.90
  4. Step 4: Simplify right side
    577,373,999.70x = 145,956,154,612,788,832
  5. Step 5: Solve for x
    x = 145,956,154,612,788,832/577,373,999.70
  6. Step 6: Final answer
    x = 252,793,085.05

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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.