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Finding the Fourth Proportional to 113,160.90, 169,889.76 and 75,887.79

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Solution

The fourth proportional to 113,160.90, 169,889.76 and 75,887.79 is: 113,931.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,160.90 : 169,889.76 = 75,887.79 : x
  2. Step 2: Convert to fraction form
    113,160.90/169,889.76 = 75,887.79/x
  3. Step 3: Cross multiply
    113,160.90x = 169,889.76 × 75,887.79
  4. Step 4: Simplify right side
    113,160.90x = 12,892,558,430.03
  5. Step 5: Solve for x
    x = 12,892,558,430.03/113,160.90
  6. Step 6: Final answer
    x = 113,931.21

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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.