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Finding the Fourth Proportional to 98,815.14, 148,225.14 and 28,695.06

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Solution

The fourth proportional to 98,815.14, 148,225.14 and 28,695.06 is: 43,043.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,815.14 : 148,225.14 = 28,695.06 : x
  2. Step 2: Convert to fraction form
    98,815.14/148,225.14 = 28,695.06/x
  3. Step 3: Cross multiply
    98,815.14x = 148,225.14 × 28,695.06
  4. Step 4: Simplify right side
    98,815.14x = 4,253,329,285.81
  5. Step 5: Solve for x
    x = 4,253,329,285.81/98,815.14
  6. Step 6: Final answer
    x = 43,043.30

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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.