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Finding the Fourth Proportional to 99,475.84, 137,276.58 and 54,763.84

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Solution

The fourth proportional to 99,475.84, 137,276.58 and 54,763.84 is: 75,574.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,475.84 : 137,276.58 = 54,763.84 : x
  2. Step 2: Convert to fraction form
    99,475.84/137,276.58 = 54,763.84/x
  3. Step 3: Cross multiply
    99,475.84x = 137,276.58 × 54,763.84
  4. Step 4: Simplify right side
    99,475.84x = 7,517,792,662.87
  5. Step 5: Solve for x
    x = 7,517,792,662.87/99,475.84
  6. Step 6: Final answer
    x = 75,574.06

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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.