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Finding the Fourth Proportional to 64,282.40, 96,358.80 and 29,247.20

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Solution

The fourth proportional to 64,282.40, 96,358.80 and 29,247.20 is: 43,841.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,282.40 : 96,358.80 = 29,247.20 : x
  2. Step 2: Convert to fraction form
    64,282.40/96,358.80 = 29,247.20/x
  3. Step 3: Cross multiply
    64,282.40x = 96,358.80 × 29,247.20
  4. Step 4: Simplify right side
    64,282.40x = 2,818,225,095.36
  5. Step 5: Solve for x
    x = 2,818,225,095.36/64,282.40
  6. Step 6: Final answer
    x = 43,841.32

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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.