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Finding the Fourth Proportional to 235,095.20, 352,642.80 and 190,858.40

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Solution

The fourth proportional to 235,095.20, 352,642.80 and 190,858.40 is: 286,287.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,095.20 : 352,642.80 = 190,858.40 : x
  2. Step 2: Convert to fraction form
    235,095.20/352,642.80 = 190,858.40/x
  3. Step 3: Cross multiply
    235,095.20x = 352,642.80 × 190,858.40
  4. Step 4: Simplify right side
    235,095.20x = 67,304,840,579.52
  5. Step 5: Solve for x
    x = 67,304,840,579.52/235,095.20
  6. Step 6: Final answer
    x = 286,287.60

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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.