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Finding the Fourth Proportional to 355,713.66, 490,888.72 and 194,565.18

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Solution

The fourth proportional to 355,713.66, 490,888.72 and 194,565.18 is: 268,502.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,713.66 : 490,888.72 = 194,565.18 : x
  2. Step 2: Convert to fraction form
    355,713.66/490,888.72 = 194,565.18/x
  3. Step 3: Cross multiply
    355,713.66x = 490,888.72 × 194,565.18
  4. Step 4: Simplify right side
    355,713.66x = 95,509,852,166.77
  5. Step 5: Solve for x
    x = 95,509,852,166.77/355,713.66
  6. Step 6: Final answer
    x = 268,502.06

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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.