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Finding the Fourth Proportional to 178,246.99, 245,888.83 and 120,866.89

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Solution

The fourth proportional to 178,246.99, 245,888.83 and 120,866.89 is: 166,733.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,246.99 : 245,888.83 = 120,866.89 : x
  2. Step 2: Convert to fraction form
    178,246.99/245,888.83 = 120,866.89/x
  3. Step 3: Cross multiply
    178,246.99x = 245,888.83 × 120,866.89
  4. Step 4: Simplify right side
    178,246.99x = 29,719,818,167.84
  5. Step 5: Solve for x
    x = 29,719,818,167.84/178,246.99
  6. Step 6: Final answer
    x = 166,733.91

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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.