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Finding the Fourth Proportional to 192,403.89, 265,345.47 and 120,790.59

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Solution

The fourth proportional to 192,403.89, 265,345.47 and 120,790.59 is: 166,583.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,403.89 : 265,345.47 = 120,790.59 : x
  2. Step 2: Convert to fraction form
    192,403.89/265,345.47 = 120,790.59/x
  3. Step 3: Cross multiply
    192,403.89x = 265,345.47 × 120,790.59
  4. Step 4: Simplify right side
    192,403.89x = 32,051,235,875.13
  5. Step 5: Solve for x
    x = 32,051,235,875.13/192,403.89
  6. Step 6: Final answer
    x = 166,583.10

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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.