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Finding the Fourth Proportional to 276,590,275.60, 414,906,408.60 and 82,486,541.20

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Solution

The fourth proportional to 276,590,275.60, 414,906,408.60 and 82,486,541.20 is: 123,736,073.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,590,275.60 : 414,906,408.60 = 82,486,541.20 : x
  2. Step 2: Convert to fraction form
    276,590,275.60/414,906,408.60 = 82,486,541.20/x
  3. Step 3: Cross multiply
    276,590,275.60x = 414,906,408.60 × 82,486,541.20
  4. Step 4: Simplify right side
    276,590,275.60x = 34,224,194,567,127,936
  5. Step 5: Solve for x
    x = 34,224,194,567,127,936/276,590,275.60
  6. Step 6: Final answer
    x = 123,736,073.12

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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.