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Finding the Fourth Proportional to 352,153.60, 528,230.40 and 102,860.80

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Solution

The fourth proportional to 352,153.60, 528,230.40 and 102,860.80 is: 154,291.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,153.60 : 528,230.40 = 102,860.80 : x
  2. Step 2: Convert to fraction form
    352,153.60/528,230.40 = 102,860.80/x
  3. Step 3: Cross multiply
    352,153.60x = 528,230.40 × 102,860.80
  4. Step 4: Simplify right side
    352,153.60x = 54,334,201,528.32
  5. Step 5: Solve for x
    x = 54,334,201,528.32/352,153.60
  6. Step 6: Final answer
    x = 154,291.20

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1.5x scale

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.