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Finding the Fourth Proportional to 96,912.40, 145,368.60 and 63,734.80

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Solution

The fourth proportional to 96,912.40, 145,368.60 and 63,734.80 is: 95,602.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,912.40 : 145,368.60 = 63,734.80 : x
  2. Step 2: Convert to fraction form
    96,912.40/145,368.60 = 63,734.80/x
  3. Step 3: Cross multiply
    96,912.40x = 145,368.60 × 63,734.80
  4. Step 4: Simplify right side
    96,912.40x = 9,265,038,647.28
  5. Step 5: Solve for x
    x = 9,265,038,647.28/96,912.40
  6. Step 6: Final answer
    x = 95,602.20

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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.