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Finding the Fourth Proportional to 119,800.34, 179,681.45 and 39,831.66

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Solution

The fourth proportional to 119,800.34, 179,681.45 and 39,831.66 is: 59,741.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,800.34 : 179,681.45 = 39,831.66 : x
  2. Step 2: Convert to fraction form
    119,800.34/179,681.45 = 39,831.66/x
  3. Step 3: Cross multiply
    119,800.34x = 179,681.45 × 39,831.66
  4. Step 4: Simplify right side
    119,800.34x = 7,157,010,524.29
  5. Step 5: Solve for x
    x = 7,157,010,524.29/119,800.34
  6. Step 6: Final answer
    x = 59,741.15

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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.