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Finding the Fourth Proportional to 114,007.72, 170,176.70 and 100,540.93

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Solution

The fourth proportional to 114,007.72, 170,176.70 and 100,540.93 is: 150,075.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,007.72 : 170,176.70 = 100,540.93 : x
  2. Step 2: Convert to fraction form
    114,007.72/170,176.70 = 100,540.93/x
  3. Step 3: Cross multiply
    114,007.72x = 170,176.70 × 100,540.93
  4. Step 4: Simplify right side
    114,007.72x = 17,109,723,261.78
  5. Step 5: Solve for x
    x = 17,109,723,261.78/114,007.72
  6. Step 6: Final answer
    x = 150,075.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.