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Finding the Fourth Proportional to 235,616.36, 325,154.04 and 128,186.48

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Solution

The fourth proportional to 235,616.36, 325,154.04 and 128,186.48 is: 176,899.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,616.36 : 325,154.04 = 128,186.48 : x
  2. Step 2: Convert to fraction form
    235,616.36/325,154.04 = 128,186.48/x
  3. Step 3: Cross multiply
    235,616.36x = 325,154.04 × 128,186.48
  4. Step 4: Simplify right side
    235,616.36x = 41,680,351,845.38
  5. Step 5: Solve for x
    x = 41,680,351,845.38/235,616.36
  6. Step 6: Final answer
    x = 176,899.23

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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.