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Finding the Fourth Proportional to 58,077.20, 81,204.40 and 58,077.20

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Solution

The fourth proportional to 58,077.20, 81,204.40 and 58,077.20 is: 81,204.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,077.20 : 81,204.40 = 58,077.20 : x
  2. Step 2: Convert to fraction form
    58,077.20/81,204.40 = 58,077.20/x
  3. Step 3: Cross multiply
    58,077.20x = 81,204.40 × 58,077.20
  4. Step 4: Simplify right side
    58,077.20x = 4,716,124,179.68
  5. Step 5: Solve for x
    x = 4,716,124,179.68/58,077.20
  6. Step 6: Final answer
    x = 81,204.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.