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Finding the Fourth Proportional to 282,051.54, 389,259.11 and 161,210.18

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Solution

The fourth proportional to 282,051.54, 389,259.11 and 161,210.18 is: 222,486.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,051.54 : 389,259.11 = 161,210.18 : x
  2. Step 2: Convert to fraction form
    282,051.54/389,259.11 = 161,210.18/x
  3. Step 3: Cross multiply
    282,051.54x = 389,259.11 × 161,210.18
  4. Step 4: Simplify right side
    282,051.54x = 62,752,532,565.91
  5. Step 5: Solve for x
    x = 62,752,532,565.91/282,051.54
  6. Step 6: Final answer
    x = 222,486.05

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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.