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Finding the Fourth Proportional to 213,779,891.80, 295,019,679.90 and 115,994,747.80

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Solution

The fourth proportional to 213,779,891.80, 295,019,679.90 and 115,994,747.80 is: 160,074,612.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,779,891.80 : 295,019,679.90 = 115,994,747.80 : x
  2. Step 2: Convert to fraction form
    213,779,891.80/295,019,679.90 = 115,994,747.80/x
  3. Step 3: Cross multiply
    213,779,891.80x = 295,019,679.90 × 115,994,747.80
  4. Step 4: Simplify right side
    213,779,891.80x = 34,220,733,366,037,224
  5. Step 5: Solve for x
    x = 34,220,733,366,037,224/213,779,891.80
  6. Step 6: Final answer
    x = 160,074,612.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.