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Finding the Fourth Proportional to 98,612.40, 147,940.20 and 32,041.20

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Solution

The fourth proportional to 98,612.40, 147,940.20 and 32,041.20 is: 48,068.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,612.40 : 147,940.20 = 32,041.20 : x
  2. Step 2: Convert to fraction form
    98,612.40/147,940.20 = 32,041.20/x
  3. Step 3: Cross multiply
    98,612.40x = 147,940.20 × 32,041.20
  4. Step 4: Simplify right side
    98,612.40x = 4,740,181,536.24
  5. Step 5: Solve for x
    x = 4,740,181,536.24/98,612.40
  6. Step 6: Final answer
    x = 48,068.82

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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.