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Finding the Fourth Proportional to 577,368,013.80, 866,052,020.70 and 168,465,498.60

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Solution

The fourth proportional to 577,368,013.80, 866,052,020.70 and 168,465,498.60 is: 252,698,247.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,368,013.80 : 866,052,020.70 = 168,465,498.60 : x
  2. Step 2: Convert to fraction form
    577,368,013.80/866,052,020.70 = 168,465,498.60/x
  3. Step 3: Cross multiply
    577,368,013.80x = 866,052,020.70 × 168,465,498.60
  4. Step 4: Simplify right side
    577,368,013.80x = 145,899,885,480,763,008
  5. Step 5: Solve for x
    x = 145,899,885,480,763,008/577,368,013.80
  6. Step 6: Final answer
    x = 252,698,247.90

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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.