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Finding the Fourth Proportional to 144,632.52, 199,612.76 and 87,274.80

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Solution

The fourth proportional to 144,632.52, 199,612.76 and 87,274.80 is: 120,451.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,632.52 : 199,612.76 = 87,274.80 : x
  2. Step 2: Convert to fraction form
    144,632.52/199,612.76 = 87,274.80/x
  3. Step 3: Cross multiply
    144,632.52x = 199,612.76 × 87,274.80
  4. Step 4: Simplify right side
    144,632.52x = 17,421,163,270.07
  5. Step 5: Solve for x
    x = 17,421,163,270.07/144,632.52
  6. Step 6: Final answer
    x = 120,451.22

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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.