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Finding the Fourth Proportional to 325,312.10, 487,968.15 and 103,696.10

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Solution

The fourth proportional to 325,312.10, 487,968.15 and 103,696.10 is: 155,544.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,312.10 : 487,968.15 = 103,696.10 : x
  2. Step 2: Convert to fraction form
    325,312.10/487,968.15 = 103,696.10/x
  3. Step 3: Cross multiply
    325,312.10x = 487,968.15 × 103,696.10
  4. Step 4: Simplify right side
    325,312.10x = 50,600,394,079.22
  5. Step 5: Solve for x
    x = 50,600,394,079.22/325,312.10
  6. Step 6: Final answer
    x = 155,544.15

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Similar ratio
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1.5x scale

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.