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Finding the Fourth Proportional to 359,124.57, 495,595.26 and 197,985.40

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Solution

The fourth proportional to 359,124.57, 495,595.26 and 197,985.40 is: 273,221.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,124.57 : 495,595.26 = 197,985.40 : x
  2. Step 2: Convert to fraction form
    359,124.57/495,595.26 = 197,985.40/x
  3. Step 3: Cross multiply
    359,124.57x = 495,595.26 × 197,985.40
  4. Step 4: Simplify right side
    359,124.57x = 98,120,624,550.22
  5. Step 5: Solve for x
    x = 98,120,624,550.22/359,124.57
  6. Step 6: Final answer
    x = 273,221.70

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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.