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Finding the Fourth Proportional to 82,910.40, 114,415.92 and 45,184.32

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Solution

The fourth proportional to 82,910.40, 114,415.92 and 45,184.32 is: 62,354.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,910.40 : 114,415.92 = 45,184.32 : x
  2. Step 2: Convert to fraction form
    82,910.40/114,415.92 = 45,184.32/x
  3. Step 3: Cross multiply
    82,910.40x = 114,415.92 × 45,184.32
  4. Step 4: Simplify right side
    82,910.40x = 5,169,805,542.37
  5. Step 5: Solve for x
    x = 5,169,805,542.37/82,910.40
  6. Step 6: Final answer
    x = 62,354.13

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1.5x scale

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.