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Finding the Fourth Proportional to 155,751,572.52, 214,913,292.12 and 89,659,295.28

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Solution

The fourth proportional to 155,751,572.52, 214,913,292.12 and 89,659,295.28 is: 123,716,082.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,751,572.52 : 214,913,292.12 = 89,659,295.28 : x
  2. Step 2: Convert to fraction form
    155,751,572.52/214,913,292.12 = 89,659,295.28/x
  3. Step 3: Cross multiply
    155,751,572.52x = 214,913,292.12 × 89,659,295.28
  4. Step 4: Simplify right side
    155,751,572.52x = 19,268,974,317,783,976
  5. Step 5: Solve for x
    x = 19,268,974,317,783,976/155,751,572.52
  6. Step 6: Final answer
    x = 123,716,082.00

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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.