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Finding the Fourth Proportional to 84,605.68, 116,724.95 and 50,615.15

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Solution

The fourth proportional to 84,605.68, 116,724.95 and 50,615.15 is: 69,830.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,605.68 : 116,724.95 = 50,615.15 : x
  2. Step 2: Convert to fraction form
    84,605.68/116,724.95 = 50,615.15/x
  3. Step 3: Cross multiply
    84,605.68x = 116,724.95 × 50,615.15
  4. Step 4: Simplify right side
    84,605.68x = 5,908,050,206.10
  5. Step 5: Solve for x
    x = 5,908,050,206.10/84,605.68
  6. Step 6: Final answer
    x = 69,830.42

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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.