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Finding the Fourth Proportional to 173,478.78, 239,466.78 and 113,064.12

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Solution

The fourth proportional to 173,478.78, 239,466.78 and 113,064.12 is: 156,071.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,478.78 : 239,466.78 = 113,064.12 : x
  2. Step 2: Convert to fraction form
    173,478.78/239,466.78 = 113,064.12/x
  3. Step 3: Cross multiply
    173,478.78x = 239,466.78 × 113,064.12
  4. Step 4: Simplify right side
    173,478.78x = 27,075,100,749.93
  5. Step 5: Solve for x
    x = 27,075,100,749.93/173,478.78
  6. Step 6: Final answer
    x = 156,071.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.