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Finding the Fourth Proportional to 115,883.40, 173,889.90 and 49,312.20

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Solution

The fourth proportional to 115,883.40, 173,889.90 and 49,312.20 is: 73,995.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,883.40 : 173,889.90 = 49,312.20 : x
  2. Step 2: Convert to fraction form
    115,883.40/173,889.90 = 49,312.20/x
  3. Step 3: Cross multiply
    115,883.40x = 173,889.90 × 49,312.20
  4. Step 4: Simplify right side
    115,883.40x = 8,574,893,526.78
  5. Step 5: Solve for x
    x = 8,574,893,526.78/115,883.40
  6. Step 6: Final answer
    x = 73,995.87

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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.