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Finding the Fourth Proportional to 85,533.91, 118,031.74 and 47,290.46

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Solution

The fourth proportional to 85,533.91, 118,031.74 and 47,290.46 is: 65,258.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,533.91 : 118,031.74 = 47,290.46 : x
  2. Step 2: Convert to fraction form
    85,533.91/118,031.74 = 47,290.46/x
  3. Step 3: Cross multiply
    85,533.91x = 118,031.74 × 47,290.46
  4. Step 4: Simplify right side
    85,533.91x = 5,581,775,042.75
  5. Step 5: Solve for x
    x = 5,581,775,042.75/85,533.91
  6. Step 6: Final answer
    x = 65,258.04

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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.