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Finding the Fourth Proportional to 265,639.61, 366,580.37 and 144,780.86

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Solution

The fourth proportional to 265,639.61, 366,580.37 and 144,780.86 is: 199,796.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,639.61 : 366,580.37 = 144,780.86 : x
  2. Step 2: Convert to fraction form
    265,639.61/366,580.37 = 144,780.86/x
  3. Step 3: Cross multiply
    265,639.61x = 366,580.37 × 144,780.86
  4. Step 4: Simplify right side
    265,639.61x = 53,073,818,670.91
  5. Step 5: Solve for x
    x = 53,073,818,670.91/265,639.61
  6. Step 6: Final answer
    x = 199,796.33

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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.