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Finding the Fourth Proportional to 144,379.19, 216,587.45 and 55,658.07

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Solution

The fourth proportional to 144,379.19, 216,587.45 and 55,658.07 is: 83,494.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,379.19 : 216,587.45 = 55,658.07 : x
  2. Step 2: Convert to fraction form
    144,379.19/216,587.45 = 55,658.07/x
  3. Step 3: Cross multiply
    144,379.19x = 216,587.45 × 55,658.07
  4. Step 4: Simplify right side
    144,379.19x = 12,054,839,592.37
  5. Step 5: Solve for x
    x = 12,054,839,592.37/144,379.19
  6. Step 6: Final answer
    x = 83,494.30

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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.