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Finding the Fourth Proportional to 163,907.70, 245,816.55 and 103,846.02

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Solution

The fourth proportional to 163,907.70, 245,816.55 and 103,846.02 is: 155,740.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,907.70 : 245,816.55 = 103,846.02 : x
  2. Step 2: Convert to fraction form
    163,907.70/245,816.55 = 103,846.02/x
  3. Step 3: Cross multiply
    163,907.70x = 245,816.55 × 103,846.02
  4. Step 4: Simplify right side
    163,907.70x = 25,527,070,367.63
  5. Step 5: Solve for x
    x = 25,527,070,367.63/163,907.70
  6. Step 6: Final answer
    x = 155,740.52

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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.