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Finding the Fourth Proportional to 282,168.18, 389,403.32 and 154,848.33

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Solution

The fourth proportional to 282,168.18, 389,403.32 and 154,848.33 is: 213,696.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,168.18 : 389,403.32 = 154,848.33 : x
  2. Step 2: Convert to fraction form
    282,168.18/389,403.32 = 154,848.33/x
  3. Step 3: Cross multiply
    282,168.18x = 389,403.32 × 154,848.33
  4. Step 4: Simplify right side
    282,168.18x = 60,298,453,798.46
  5. Step 5: Solve for x
    x = 60,298,453,798.46/282,168.18
  6. Step 6: Final answer
    x = 213,696.86

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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.