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Finding the Fourth Proportional to 111,668,015.80, 167,502,023.70 and 82,970,201.80

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Solution

The fourth proportional to 111,668,015.80, 167,502,023.70 and 82,970,201.80 is: 124,455,302.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,668,015.80 : 167,502,023.70 = 82,970,201.80 : x
  2. Step 2: Convert to fraction form
    111,668,015.80/167,502,023.70 = 82,970,201.80/x
  3. Step 3: Cross multiply
    111,668,015.80x = 167,502,023.70 × 82,970,201.80
  4. Step 4: Simplify right side
    111,668,015.80x = 13,897,676,708,297,382
  5. Step 5: Solve for x
    x = 13,897,676,708,297,382/111,668,015.80
  6. Step 6: Final answer
    x = 124,455,302.70

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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.