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Finding the Fourth Proportional to 84,503.60, 116,617.72 and 48,690.80

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Solution

The fourth proportional to 84,503.60, 116,617.72 and 48,690.80 is: 67,194.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,503.60 : 116,617.72 = 48,690.80 : x
  2. Step 2: Convert to fraction form
    84,503.60/116,617.72 = 48,690.80/x
  3. Step 3: Cross multiply
    84,503.60x = 116,617.72 × 48,690.80
  4. Step 4: Simplify right side
    84,503.60x = 5,678,210,080.98
  5. Step 5: Solve for x
    x = 5,678,210,080.98/84,503.60
  6. Step 6: Final answer
    x = 67,194.89

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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.