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Finding the Fourth Proportional to 117,068.80, 175,084.80 and 98,406.40

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Solution

The fourth proportional to 117,068.80, 175,084.80 and 98,406.40 is: 147,173.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,068.80 : 175,084.80 = 98,406.40 : x
  2. Step 2: Convert to fraction form
    117,068.80/175,084.80 = 98,406.40/x
  3. Step 3: Cross multiply
    117,068.80x = 175,084.80 × 98,406.40
  4. Step 4: Simplify right side
    117,068.80x = 17,229,464,862.72
  5. Step 5: Solve for x
    x = 17,229,464,862.72/117,068.80
  6. Step 6: Final answer
    x = 147,173.84

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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.