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Finding the Fourth Proportional to 116,459.60, 174,465.84 and 66,391.88

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Solution

The fourth proportional to 116,459.60, 174,465.84 and 66,391.88 is: 99,460.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,459.60 : 174,465.84 = 66,391.88 : x
  2. Step 2: Convert to fraction form
    116,459.60/174,465.84 = 66,391.88/x
  3. Step 3: Cross multiply
    116,459.60x = 174,465.84 × 66,391.88
  4. Step 4: Simplify right side
    116,459.60x = 11,583,115,113.38
  5. Step 5: Solve for x
    x = 11,583,115,113.38/116,459.60
  6. Step 6: Final answer
    x = 99,460.37

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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.