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Finding the Fourth Proportional to 118,159.93, 163,076.37 and 75,143.48

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Solution

The fourth proportional to 118,159.93, 163,076.37 and 75,143.48 is: 103,707.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,159.93 : 163,076.37 = 75,143.48 : x
  2. Step 2: Convert to fraction form
    118,159.93/163,076.37 = 75,143.48/x
  3. Step 3: Cross multiply
    118,159.93x = 163,076.37 × 75,143.48
  4. Step 4: Simplify right side
    118,159.93x = 12,254,125,947.57
  5. Step 5: Solve for x
    x = 12,254,125,947.57/118,159.93
  6. Step 6: Final answer
    x = 103,707.97

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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.