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Finding the Fourth Proportional to 169,978,214.80, 254,967,322.20 and 108,756,211.60

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Solution

The fourth proportional to 169,978,214.80, 254,967,322.20 and 108,756,211.60 is: 163,134,317.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,978,214.80 : 254,967,322.20 = 108,756,211.60 : x
  2. Step 2: Convert to fraction form
    169,978,214.80/254,967,322.20 = 108,756,211.60/x
  3. Step 3: Cross multiply
    169,978,214.80x = 254,967,322.20 × 108,756,211.60
  4. Step 4: Simplify right side
    169,978,214.80x = 27,729,280,044,268,576
  5. Step 5: Solve for x
    x = 27,729,280,044,268,576/169,978,214.80
  6. Step 6: Final answer
    x = 163,134,317.40

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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.