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Finding the Fourth Proportional to 78,358.52, 108,136.99 and 46,095.51

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Solution

The fourth proportional to 78,358.52, 108,136.99 and 46,095.51 is: 63,613.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,358.52 : 108,136.99 = 46,095.51 : x
  2. Step 2: Convert to fraction form
    78,358.52/108,136.99 = 46,095.51/x
  3. Step 3: Cross multiply
    78,358.52x = 108,136.99 × 46,095.51
  4. Step 4: Simplify right side
    78,358.52x = 4,984,630,167.05
  5. Step 5: Solve for x
    x = 4,984,630,167.05/78,358.52
  6. Step 6: Final answer
    x = 63,613.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.