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Finding the Fourth Proportional to 59,130, 81,599.40 and 40,300.02

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Solution

The fourth proportional to 59,130, 81,599.40 and 40,300.02 is: 55,614.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,130 : 81,599.40 = 40,300.02 : x
  2. Step 2: Convert to fraction form
    59,130/81,599.40 = 40,300.02/x
  3. Step 3: Cross multiply
    59,130x = 81,599.40 × 40,300.02
  4. Step 4: Simplify right side
    59,130x = 3,288,457,451.99
  5. Step 5: Solve for x
    x = 3,288,457,451.99/59,130
  6. Step 6: Final answer
    x = 55,614.03

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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.