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Finding the Fourth Proportional to 359,946.35, 540,030.95 and 216,012.89

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Solution

The fourth proportional to 359,946.35, 540,030.95 and 216,012.89 is: 324,086.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,946.35 : 540,030.95 = 216,012.89 : x
  2. Step 2: Convert to fraction form
    359,946.35/540,030.95 = 216,012.89/x
  3. Step 3: Cross multiply
    359,946.35x = 540,030.95 × 216,012.89
  4. Step 4: Simplify right side
    359,946.35x = 116,653,642,418.73
  5. Step 5: Solve for x
    x = 116,653,642,418.73/359,946.35
  6. Step 6: Final answer
    x = 324,086.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.