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Finding the Fourth Proportional to 86,195.52, 118,947.53 and 47,953.13

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Solution

The fourth proportional to 86,195.52, 118,947.53 and 47,953.13 is: 66,174.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,195.52 : 118,947.53 = 47,953.13 : x
  2. Step 2: Convert to fraction form
    86,195.52/118,947.53 = 47,953.13/x
  3. Step 3: Cross multiply
    86,195.52x = 118,947.53 × 47,953.13
  4. Step 4: Simplify right side
    86,195.52x = 5,703,905,534.77
  5. Step 5: Solve for x
    x = 5,703,905,534.77/86,195.52
  6. Step 6: Final answer
    x = 66,174.04

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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.