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Finding the Fourth Proportional to 103,358.25, 155,074.28 and 50,804.64

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Solution

The fourth proportional to 103,358.25, 155,074.28 and 50,804.64 is: 76,225.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,358.25 : 155,074.28 = 50,804.64 : x
  2. Step 2: Convert to fraction form
    103,358.25/155,074.28 = 50,804.64/x
  3. Step 3: Cross multiply
    103,358.25x = 155,074.28 × 50,804.64
  4. Step 4: Simplify right side
    103,358.25x = 7,878,492,714.64
  5. Step 5: Solve for x
    x = 7,878,492,714.64/103,358.25
  6. Step 6: Final answer
    x = 76,225.10

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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.