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Finding the Fourth Proportional to 116,700.93, 175,034.88 and 66,618.63

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Solution

The fourth proportional to 116,700.93, 175,034.88 and 66,618.63 is: 99,918.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,700.93 : 175,034.88 = 66,618.63 : x
  2. Step 2: Convert to fraction form
    116,700.93/175,034.88 = 66,618.63/x
  3. Step 3: Cross multiply
    116,700.93x = 175,034.88 × 66,618.63
  4. Step 4: Simplify right side
    116,700.93x = 11,660,583,907.81
  5. Step 5: Solve for x
    x = 11,660,583,907.81/116,700.93
  6. Step 6: Final answer
    x = 99,918.52

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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.