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Finding the Fourth Proportional to 359,254.20, 539,075.70 and 148,913.40

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Solution

The fourth proportional to 359,254.20, 539,075.70 and 148,913.40 is: 223,450.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,254.20 : 539,075.70 = 148,913.40 : x
  2. Step 2: Convert to fraction form
    359,254.20/539,075.70 = 148,913.40/x
  3. Step 3: Cross multiply
    359,254.20x = 539,075.70 × 148,913.40
  4. Step 4: Simplify right side
    359,254.20x = 80,275,595,344.38
  5. Step 5: Solve for x
    x = 80,275,595,344.38/359,254.20
  6. Step 6: Final answer
    x = 223,450.68

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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.