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Finding the Fourth Proportional to 115,578.70, 173,368.59 and 49,002.10

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Solution

The fourth proportional to 115,578.70, 173,368.59 and 49,002.10 is: 73,503.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,578.70 : 173,368.59 = 49,002.10 : x
  2. Step 2: Convert to fraction form
    115,578.70/173,368.59 = 49,002.10/x
  3. Step 3: Cross multiply
    115,578.70x = 173,368.59 × 49,002.10
  4. Step 4: Simplify right side
    115,578.70x = 8,495,424,984.04
  5. Step 5: Solve for x
    x = 8,495,424,984.04/115,578.70
  6. Step 6: Final answer
    x = 73,503.38

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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.