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Finding the Fourth Proportional to 235,043.68, 352,705.57 and 85,295.65

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Solution

The fourth proportional to 235,043.68, 352,705.57 and 85,295.65 is: 127,994.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,043.68 : 352,705.57 = 85,295.65 : x
  2. Step 2: Convert to fraction form
    235,043.68/352,705.57 = 85,295.65/x
  3. Step 3: Cross multiply
    235,043.68x = 352,705.57 × 85,295.65
  4. Step 4: Simplify right side
    235,043.68x = 30,084,249,088.24
  5. Step 5: Solve for x
    x = 30,084,249,088.24/235,043.68
  6. Step 6: Final answer
    x = 127,994.29

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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.