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Finding the Fourth Proportional to 216,281.01, 324,421.56 and 58,521.81

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Solution

The fourth proportional to 216,281.01, 324,421.56 and 58,521.81 is: 87,782.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,281.01 : 324,421.56 = 58,521.81 : x
  2. Step 2: Convert to fraction form
    216,281.01/324,421.56 = 58,521.81/x
  3. Step 3: Cross multiply
    216,281.01x = 324,421.56 × 58,521.81
  4. Step 4: Simplify right side
    216,281.01x = 18,985,736,894.22
  5. Step 5: Solve for x
    x = 18,985,736,894.22/216,281.01
  6. Step 6: Final answer
    x = 87,782.73

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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.