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Finding the Fourth Proportional to 122,121.68, 183,208.64 and 37,880.01

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Solution

The fourth proportional to 122,121.68, 183,208.64 and 37,880.01 is: 56,828.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,121.68 : 183,208.64 = 37,880.01 : x
  2. Step 2: Convert to fraction form
    122,121.68/183,208.64 = 37,880.01/x
  3. Step 3: Cross multiply
    122,121.68x = 183,208.64 × 37,880.01
  4. Step 4: Simplify right side
    122,121.68x = 6,939,944,925.89
  5. Step 5: Solve for x
    x = 6,939,944,925.89/122,121.68
  6. Step 6: Final answer
    x = 56,828.12

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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.