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Finding the Fourth Proportional to 210,014.75, 289,827.65 and 119,374.54

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Solution

The fourth proportional to 210,014.75, 289,827.65 and 119,374.54 is: 164,741.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,014.75 : 289,827.65 = 119,374.54 : x
  2. Step 2: Convert to fraction form
    210,014.75/289,827.65 = 119,374.54/x
  3. Step 3: Cross multiply
    210,014.75x = 289,827.65 × 119,374.54
  4. Step 4: Simplify right side
    210,014.75x = 34,598,042,398.03
  5. Step 5: Solve for x
    x = 34,598,042,398.03/210,014.75
  6. Step 6: Final answer
    x = 164,741.01

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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.