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Finding the Fourth Proportional to 239,245.66, 358,746.50 and 79,263.88

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Solution

The fourth proportional to 239,245.66, 358,746.50 and 79,263.88 is: 118,855.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,245.66 : 358,746.50 = 79,263.88 : x
  2. Step 2: Convert to fraction form
    239,245.66/358,746.50 = 79,263.88/x
  3. Step 3: Cross multiply
    239,245.66x = 358,746.50 × 79,263.88
  4. Step 4: Simplify right side
    239,245.66x = 28,435,639,526.42
  5. Step 5: Solve for x
    x = 28,435,639,526.42/239,245.66
  6. Step 6: Final answer
    x = 118,855.40

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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.