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Finding the Fourth Proportional to 153,091.84, 210,955.15 and 118,425.97

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Solution

The fourth proportional to 153,091.84, 210,955.15 and 118,425.97 is: 163,186.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,091.84 : 210,955.15 = 118,425.97 : x
  2. Step 2: Convert to fraction form
    153,091.84/210,955.15 = 118,425.97/x
  3. Step 3: Cross multiply
    153,091.84x = 210,955.15 × 118,425.97
  4. Step 4: Simplify right side
    153,091.84x = 24,982,568,265.25
  5. Step 5: Solve for x
    x = 24,982,568,265.25/153,091.84
  6. Step 6: Final answer
    x = 163,186.81

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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.