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Finding the Fourth Proportional to 144,064.60, 216,032.10 and 55,288.60

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Solution

The fourth proportional to 144,064.60, 216,032.10 and 55,288.60 is: 82,908.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,064.60 : 216,032.10 = 55,288.60 : x
  2. Step 2: Convert to fraction form
    144,064.60/216,032.10 = 55,288.60/x
  3. Step 3: Cross multiply
    144,064.60x = 216,032.10 × 55,288.60
  4. Step 4: Simplify right side
    144,064.60x = 11,944,112,364.06
  5. Step 5: Solve for x
    x = 11,944,112,364.06/144,064.60
  6. Step 6: Final answer
    x = 82,908.03

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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.