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Finding the Fourth Proportional to 48,696.90, 73,045.35 and 43,448.10

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Solution

The fourth proportional to 48,696.90, 73,045.35 and 43,448.10 is: 65,172.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,696.90 : 73,045.35 = 43,448.10 : x
  2. Step 2: Convert to fraction form
    48,696.90/73,045.35 = 43,448.10/x
  3. Step 3: Cross multiply
    48,696.90x = 73,045.35 × 43,448.10
  4. Step 4: Simplify right side
    48,696.90x = 3,173,681,671.34
  5. Step 5: Solve for x
    x = 3,173,681,671.34/48,696.90
  6. Step 6: Final answer
    x = 65,172.15

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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.