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Finding the Fourth Proportional to 356,565.16, 492,061.80 and 195,421.60

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Solution

The fourth proportional to 356,565.16, 492,061.80 and 195,421.60 is: 269,682.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,565.16 : 492,061.80 = 195,421.60 : x
  2. Step 2: Convert to fraction form
    356,565.16/492,061.80 = 195,421.60/x
  3. Step 3: Cross multiply
    356,565.16x = 492,061.80 × 195,421.60
  4. Step 4: Simplify right side
    356,565.16x = 96,159,504,254.88
  5. Step 5: Solve for x
    x = 96,159,504,254.88/356,565.16
  6. Step 6: Final answer
    x = 269,682.84

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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.