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Finding the Fourth Proportional to 383,437.80, 575,151.30 and 173,075.40

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Solution

The fourth proportional to 383,437.80, 575,151.30 and 173,075.40 is: 259,610.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,437.80 : 575,151.30 = 173,075.40 : x
  2. Step 2: Convert to fraction form
    383,437.80/575,151.30 = 173,075.40/x
  3. Step 3: Cross multiply
    383,437.80x = 575,151.30 × 173,075.40
  4. Step 4: Simplify right side
    383,437.80x = 99,544,541,308.02
  5. Step 5: Solve for x
    x = 99,544,541,308.02/383,437.80
  6. Step 6: Final answer
    x = 259,610.66

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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.