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Finding the Fourth Proportional to 123,640,802.60, 185,461,203.90 and 108,524,258.60

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Solution

The fourth proportional to 123,640,802.60, 185,461,203.90 and 108,524,258.60 is: 162,786,387.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,640,802.60 : 185,461,203.90 = 108,524,258.60 : x
  2. Step 2: Convert to fraction form
    123,640,802.60/185,461,203.90 = 108,524,258.60/x
  3. Step 3: Cross multiply
    123,640,802.60x = 185,461,203.90 × 108,524,258.60
  4. Step 4: Simplify right side
    123,640,802.60x = 20,127,039,652,310,928
  5. Step 5: Solve for x
    x = 20,127,039,652,310,928/123,640,802.60
  6. Step 6: Final answer
    x = 162,786,387.90

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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.