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Finding the Fourth Proportional to 98,598.40, 147,786.60 and 48,572.56

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Solution

The fourth proportional to 98,598.40, 147,786.60 and 48,572.56 is: 72,804.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,598.40 : 147,786.60 = 48,572.56 : x
  2. Step 2: Convert to fraction form
    98,598.40/147,786.60 = 48,572.56/x
  3. Step 3: Cross multiply
    98,598.40x = 147,786.60 × 48,572.56
  4. Step 4: Simplify right side
    98,598.40x = 7,178,373,495.70
  5. Step 5: Solve for x
    x = 7,178,373,495.70/98,598.40
  6. Step 6: Final answer
    x = 72,804.16

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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.