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Finding the Fourth Proportional to 352,050.40, 528,075.60 and 115,400.80

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Solution

The fourth proportional to 352,050.40, 528,075.60 and 115,400.80 is: 173,101.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,050.40 : 528,075.60 = 115,400.80 : x
  2. Step 2: Convert to fraction form
    352,050.40/528,075.60 = 115,400.80/x
  3. Step 3: Cross multiply
    352,050.40x = 528,075.60 × 115,400.80
  4. Step 4: Simplify right side
    352,050.40x = 60,940,346,700.48
  5. Step 5: Solve for x
    x = 60,940,346,700.48/352,050.40
  6. Step 6: Final answer
    x = 173,101.20

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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.