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Finding the Fourth Proportional to 186,663.66, 280,009.53 and 53,542.86

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Solution

The fourth proportional to 186,663.66, 280,009.53 and 53,542.86 is: 80,318.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,663.66 : 280,009.53 = 53,542.86 : x
  2. Step 2: Convert to fraction form
    186,663.66/280,009.53 = 53,542.86/x
  3. Step 3: Cross multiply
    186,663.66x = 280,009.53 × 53,542.86
  4. Step 4: Simplify right side
    186,663.66x = 14,992,511,063.46
  5. Step 5: Solve for x
    x = 14,992,511,063.46/186,663.66
  6. Step 6: Final answer
    x = 80,318.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.