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Finding the Fourth Proportional to 295,694,143.68, 408,041,417.52 and 161,705,619.12

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Solution

The fourth proportional to 295,694,143.68, 408,041,417.52 and 161,705,619.12 is: 223,144,730.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,694,143.68 : 408,041,417.52 = 161,705,619.12 : x
  2. Step 2: Convert to fraction form
    295,694,143.68/408,041,417.52 = 161,705,619.12/x
  3. Step 3: Cross multiply
    295,694,143.68x = 408,041,417.52 × 161,705,619.12
  4. Step 4: Simplify right side
    295,694,143.68x = 65,982,590,046,674,016
  5. Step 5: Solve for x
    x = 65,982,590,046,674,016/295,694,143.68
  6. Step 6: Final answer
    x = 223,144,730.65

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