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Finding the Fourth Proportional to 359,386.50, 495,955.71 and 198,245.91

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Solution

The fourth proportional to 359,386.50, 495,955.71 and 198,245.91 is: 273,580.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,386.50 : 495,955.71 = 198,245.91 : x
  2. Step 2: Convert to fraction form
    359,386.50/495,955.71 = 198,245.91/x
  3. Step 3: Cross multiply
    359,386.50x = 495,955.71 × 198,245.91
  4. Step 4: Simplify right side
    359,386.50x = 98,321,191,048.65
  5. Step 5: Solve for x
    x = 98,321,191,048.65/359,386.50
  6. Step 6: Final answer
    x = 273,580.65

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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.