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Finding the Fourth Proportional to 98,457.28, 147,598.08 and 36,113.28

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Solution

The fourth proportional to 98,457.28, 147,598.08 and 36,113.28 is: 54,137.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,457.28 : 147,598.08 = 36,113.28 : x
  2. Step 2: Convert to fraction form
    98,457.28/147,598.08 = 36,113.28/x
  3. Step 3: Cross multiply
    98,457.28x = 147,598.08 × 36,113.28
  4. Step 4: Simplify right side
    98,457.28x = 5,330,250,790.50
  5. Step 5: Solve for x
    x = 5,330,250,790.50/98,457.28
  6. Step 6: Final answer
    x = 54,137.70

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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.