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Finding the Fourth Proportional to 141,954,751.80, 212,932,127.70 and 122,471,206.20

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Solution

The fourth proportional to 141,954,751.80, 212,932,127.70 and 122,471,206.20 is: 183,706,809.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,954,751.80 : 212,932,127.70 = 122,471,206.20 : x
  2. Step 2: Convert to fraction form
    141,954,751.80/212,932,127.70 = 122,471,206.20/x
  3. Step 3: Cross multiply
    141,954,751.80x = 212,932,127.70 × 122,471,206.20
  4. Step 4: Simplify right side
    141,954,751.80x = 26,078,054,518,151,432
  5. Step 5: Solve for x
    x = 26,078,054,518,151,432/141,954,751.80
  6. Step 6: Final answer
    x = 183,706,809.30

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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.