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Finding the Fourth Proportional to 98,445.30, 147,704.40 and 94,800.30

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Solution

The fourth proportional to 98,445.30, 147,704.40 and 94,800.30 is: 142,235.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,445.30 : 147,704.40 = 94,800.30 : x
  2. Step 2: Convert to fraction form
    98,445.30/147,704.40 = 94,800.30/x
  3. Step 3: Cross multiply
    98,445.30x = 147,704.40 × 94,800.30
  4. Step 4: Simplify right side
    98,445.30x = 14,002,421,431.32
  5. Step 5: Solve for x
    x = 14,002,421,431.32/98,445.30
  6. Step 6: Final answer
    x = 142,235.55

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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.