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Finding the Fourth Proportional to 144,564.37, 216,820.42 and 39,358.73

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Solution

The fourth proportional to 144,564.37, 216,820.42 and 39,358.73 is: 59,030.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,564.37 : 216,820.42 = 39,358.73 : x
  2. Step 2: Convert to fraction form
    144,564.37/216,820.42 = 39,358.73/x
  3. Step 3: Cross multiply
    144,564.37x = 216,820.42 × 39,358.73
  4. Step 4: Simplify right side
    144,564.37x = 8,533,776,812.92
  5. Step 5: Solve for x
    x = 8,533,776,812.92/144,564.37
  6. Step 6: Final answer
    x = 59,030.98

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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.