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Finding the Fourth Proportional to 82,873.56, 124,326.54 and 30,276.12

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Solution

The fourth proportional to 82,873.56, 124,326.54 and 30,276.12 is: 45,420.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,873.56 : 124,326.54 = 30,276.12 : x
  2. Step 2: Convert to fraction form
    82,873.56/124,326.54 = 30,276.12/x
  3. Step 3: Cross multiply
    82,873.56x = 124,326.54 × 30,276.12
  4. Step 4: Simplify right side
    82,873.56x = 3,764,125,244.22
  5. Step 5: Solve for x
    x = 3,764,125,244.22/82,873.56
  6. Step 6: Final answer
    x = 45,420.10

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1.5x scale

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.