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Finding the Fourth Proportional to 82,765.83, 124,148.09 and 54,810.98

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Solution

The fourth proportional to 82,765.83, 124,148.09 and 54,810.98 is: 82,216.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,765.83 : 124,148.09 = 54,810.98 : x
  2. Step 2: Convert to fraction form
    82,765.83/124,148.09 = 54,810.98/x
  3. Step 3: Cross multiply
    82,765.83x = 124,148.09 × 54,810.98
  4. Step 4: Simplify right side
    82,765.83x = 6,804,678,459.87
  5. Step 5: Solve for x
    x = 6,804,678,459.87/82,765.83
  6. Step 6: Final answer
    x = 82,216.03

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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.