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Finding the Fourth Proportional to 359,321.76, 495,950.64 and 216,054.06

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Solution

The fourth proportional to 359,321.76, 495,950.64 and 216,054.06 is: 298,206.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,321.76 : 495,950.64 = 216,054.06 : x
  2. Step 2: Convert to fraction form
    359,321.76/495,950.64 = 216,054.06/x
  3. Step 3: Cross multiply
    359,321.76x = 495,950.64 × 216,054.06
  4. Step 4: Simplify right side
    359,321.76x = 107,152,149,331.60
  5. Step 5: Solve for x
    x = 107,152,149,331.60/359,321.76
  6. Step 6: Final answer
    x = 298,206.68

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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.