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Finding the Fourth Proportional to 133,068.55, 183,628.20 and 75,702.49

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Solution

The fourth proportional to 133,068.55, 183,628.20 and 75,702.49 is: 104,465.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,068.55 : 183,628.20 = 75,702.49 : x
  2. Step 2: Convert to fraction form
    133,068.55/183,628.20 = 75,702.49/x
  3. Step 3: Cross multiply
    133,068.55x = 183,628.20 × 75,702.49
  4. Step 4: Simplify right side
    133,068.55x = 13,901,111,056.08
  5. Step 5: Solve for x
    x = 13,901,111,056.08/133,068.55
  6. Step 6: Final answer
    x = 104,465.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.