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Finding the Fourth Proportional to 479,045.34, 718,633.62 and 163,417.50

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Solution

The fourth proportional to 479,045.34, 718,633.62 and 163,417.50 is: 245,148.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,045.34 : 718,633.62 = 163,417.50 : x
  2. Step 2: Convert to fraction form
    479,045.34/718,633.62 = 163,417.50/x
  3. Step 3: Cross multiply
    479,045.34x = 718,633.62 × 163,417.50
  4. Step 4: Simplify right side
    479,045.34x = 117,437,309,596.35
  5. Step 5: Solve for x
    x = 117,437,309,596.35/479,045.34
  6. Step 6: Final answer
    x = 245,148.63

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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.