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Finding the Fourth Proportional to 282,482.46, 389,893.68 and 161,693.76

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Solution

The fourth proportional to 282,482.46, 389,893.68 and 161,693.76 is: 223,176.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,482.46 : 389,893.68 = 161,693.76 : x
  2. Step 2: Convert to fraction form
    282,482.46/389,893.68 = 161,693.76/x
  3. Step 3: Cross multiply
    282,482.46x = 389,893.68 × 161,693.76
  4. Step 4: Simplify right side
    282,482.46x = 63,043,375,119.44
  5. Step 5: Solve for x
    x = 63,043,375,119.44/282,482.46
  6. Step 6: Final answer
    x = 223,176.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.