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Finding the Fourth Proportional to 587,881.11, 881,661.48 and 161,315.79

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Solution

The fourth proportional to 587,881.11, 881,661.48 and 161,315.79 is: 241,929.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,881.11 : 881,661.48 = 161,315.79 : x
  2. Step 2: Convert to fraction form
    587,881.11/881,661.48 = 161,315.79/x
  3. Step 3: Cross multiply
    587,881.11x = 881,661.48 × 161,315.79
  4. Step 4: Simplify right side
    587,881.11x = 142,225,918,158.77
  5. Step 5: Solve for x
    x = 142,225,918,158.77/587,881.11
  6. Step 6: Final answer
    x = 241,929.73

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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.