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Finding the Fourth Proportional to 144,518.64, 216,755.88 and 39,345.84

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Solution

The fourth proportional to 144,518.64, 216,755.88 and 39,345.84 is: 59,012.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,518.64 : 216,755.88 = 39,345.84 : x
  2. Step 2: Convert to fraction form
    144,518.64/216,755.88 = 39,345.84/x
  3. Step 3: Cross multiply
    144,518.64x = 216,755.88 × 39,345.84
  4. Step 4: Simplify right side
    144,518.64x = 8,528,442,173.54
  5. Step 5: Solve for x
    x = 8,528,442,173.54/144,518.64
  6. Step 6: Final answer
    x = 59,012.75

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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.