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Finding the Fourth Proportional to 359,281.71, 495,802.22 and 198,151.65

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Solution

The fourth proportional to 359,281.71, 495,802.22 and 198,151.65 is: 273,445.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,281.71 : 495,802.22 = 198,151.65 : x
  2. Step 2: Convert to fraction form
    359,281.71/495,802.22 = 198,151.65/x
  3. Step 3: Cross multiply
    359,281.71x = 495,802.22 × 198,151.65
  4. Step 4: Simplify right side
    359,281.71x = 98,244,026,975.90
  5. Step 5: Solve for x
    x = 98,244,026,975.90/359,281.71
  6. Step 6: Final answer
    x = 273,445.67

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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.