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Finding the Fourth Proportional to 105,712.53, 158,544.52 and 63,030.03

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Solution

The fourth proportional to 105,712.53, 158,544.52 and 63,030.03 is: 94,530.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,712.53 : 158,544.52 = 63,030.03 : x
  2. Step 2: Convert to fraction form
    105,712.53/158,544.52 = 63,030.03/x
  3. Step 3: Cross multiply
    105,712.53x = 158,544.52 × 63,030.03
  4. Step 4: Simplify right side
    105,712.53x = 9,993,065,851.94
  5. Step 5: Solve for x
    x = 9,993,065,851.94/105,712.53
  6. Step 6: Final answer
    x = 94,530.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.