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Finding the Fourth Proportional to 210,062.55, 289,885.06 and 119,418.56

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Solution

The fourth proportional to 210,062.55, 289,885.06 and 119,418.56 is: 164,796.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,062.55 : 289,885.06 = 119,418.56 : x
  2. Step 2: Convert to fraction form
    210,062.55/289,885.06 = 119,418.56/x
  3. Step 3: Cross multiply
    210,062.55x = 289,885.06 × 119,418.56
  4. Step 4: Simplify right side
    210,062.55x = 34,617,656,430.71
  5. Step 5: Solve for x
    x = 34,617,656,430.71/210,062.55
  6. Step 6: Final answer
    x = 164,796.90

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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.