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Finding the Fourth Proportional to 83,889.36, 115,762.92 and 46,156.40

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Solution

The fourth proportional to 83,889.36, 115,762.92 and 46,156.40 is: 63,693.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,889.36 : 115,762.92 = 46,156.40 : x
  2. Step 2: Convert to fraction form
    83,889.36/115,762.92 = 46,156.40/x
  3. Step 3: Cross multiply
    83,889.36x = 115,762.92 × 46,156.40
  4. Step 4: Simplify right side
    83,889.36x = 5,343,199,640.69
  5. Step 5: Solve for x
    x = 5,343,199,640.69/83,889.36
  6. Step 6: Final answer
    x = 63,693.41

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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.