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Finding the Fourth Proportional to 84,605.31, 116,784.59 and 48,809.59

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Solution

The fourth proportional to 84,605.31, 116,784.59 and 48,809.59 is: 67,374.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,605.31 : 116,784.59 = 48,809.59 : x
  2. Step 2: Convert to fraction form
    84,605.31/116,784.59 = 48,809.59/x
  3. Step 3: Cross multiply
    84,605.31x = 116,784.59 × 48,809.59
  4. Step 4: Simplify right side
    84,605.31x = 5,700,207,420.21
  5. Step 5: Solve for x
    x = 5,700,207,420.21/84,605.31
  6. Step 6: Final answer
    x = 67,374.11

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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.