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Finding the Fourth Proportional to 82,858.60, 124,287.90 and 59,703.40

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Solution

The fourth proportional to 82,858.60, 124,287.90 and 59,703.40 is: 89,555.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,858.60 : 124,287.90 = 59,703.40 : x
  2. Step 2: Convert to fraction form
    82,858.60/124,287.90 = 59,703.40/x
  3. Step 3: Cross multiply
    82,858.60x = 124,287.90 × 59,703.40
  4. Step 4: Simplify right side
    82,858.60x = 7,420,410,208.86
  5. Step 5: Solve for x
    x = 7,420,410,208.86/82,858.60
  6. Step 6: Final answer
    x = 89,555.10

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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.