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Finding the Fourth Proportional to 98,870.56, 148,336.08 and 28,750.48

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Solution

The fourth proportional to 98,870.56, 148,336.08 and 28,750.48 is: 43,134.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,870.56 : 148,336.08 = 28,750.48 : x
  2. Step 2: Convert to fraction form
    98,870.56/148,336.08 = 28,750.48/x
  3. Step 3: Cross multiply
    98,870.56x = 148,336.08 × 28,750.48
  4. Step 4: Simplify right side
    98,870.56x = 4,264,733,501.32
  5. Step 5: Solve for x
    x = 4,264,733,501.32/98,870.56
  6. Step 6: Final answer
    x = 43,134.51

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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.