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Finding the Fourth Proportional to 118,975.47, 164,186.37 and 65,260.92

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Solution

The fourth proportional to 118,975.47, 164,186.37 and 65,260.92 is: 90,060.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,975.47 : 164,186.37 = 65,260.92 : x
  2. Step 2: Convert to fraction form
    118,975.47/164,186.37 = 65,260.92/x
  3. Step 3: Cross multiply
    118,975.47x = 164,186.37 × 65,260.92
  4. Step 4: Simplify right side
    118,975.47x = 10,714,953,557.66
  5. Step 5: Solve for x
    x = 10,714,953,557.66/118,975.47
  6. Step 6: Final answer
    x = 90,060.19

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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.