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Finding the Fourth Proportional to 181,518.73, 250,491.53 and 98,730.63

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Solution

The fourth proportional to 181,518.73, 250,491.53 and 98,730.63 is: 136,245.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,518.73 : 250,491.53 = 98,730.63 : x
  2. Step 2: Convert to fraction form
    181,518.73/250,491.53 = 98,730.63/x
  3. Step 3: Cross multiply
    181,518.73x = 250,491.53 × 98,730.63
  4. Step 4: Simplify right side
    181,518.73x = 24,731,186,566.56
  5. Step 5: Solve for x
    x = 24,731,186,566.56/181,518.73
  6. Step 6: Final answer
    x = 136,245.92

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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.