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Finding the Fourth Proportional to 75,975.53, 104,852.54 and 41,990.65

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Solution

The fourth proportional to 75,975.53, 104,852.54 and 41,990.65 is: 57,950.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,975.53 : 104,852.54 = 41,990.65 : x
  2. Step 2: Convert to fraction form
    75,975.53/104,852.54 = 41,990.65/x
  3. Step 3: Cross multiply
    75,975.53x = 104,852.54 × 41,990.65
  4. Step 4: Simplify right side
    75,975.53x = 4,402,825,915.40
  5. Step 5: Solve for x
    x = 4,402,825,915.40/75,975.53
  6. Step 6: Final answer
    x = 57,950.58

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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.