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Finding the Fourth Proportional to 359,154.64, 495,636.84 and 198,015.44

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Solution

The fourth proportional to 359,154.64, 495,636.84 and 198,015.44 is: 273,263.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,154.64 : 495,636.84 = 198,015.44 : x
  2. Step 2: Convert to fraction form
    359,154.64/495,636.84 = 198,015.44/x
  3. Step 3: Cross multiply
    359,154.64x = 495,636.84 × 198,015.44
  4. Step 4: Simplify right side
    359,154.64x = 98,143,746,952.81
  5. Step 5: Solve for x
    x = 98,143,746,952.81/359,154.64
  6. Step 6: Final answer
    x = 273,263.20

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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.