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Finding the Fourth Proportional to 133,068.89, 183,628.59 and 75,702.80

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Solution

The fourth proportional to 133,068.89, 183,628.59 and 75,702.80 is: 104,466.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,068.89 : 183,628.59 = 75,702.80 : x
  2. Step 2: Convert to fraction form
    133,068.89/183,628.59 = 75,702.80/x
  3. Step 3: Cross multiply
    133,068.89x = 183,628.59 × 75,702.80
  4. Step 4: Simplify right side
    133,068.89x = 13,901,197,504.91
  5. Step 5: Solve for x
    x = 13,901,197,504.91/133,068.89
  6. Step 6: Final answer
    x = 104,466.18

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1.5x scale

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.