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Finding the Fourth Proportional to 93,292.72, 128,743.98 and 53,006.53

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Solution

The fourth proportional to 93,292.72, 128,743.98 and 53,006.53 is: 73,149.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,292.72 : 128,743.98 = 53,006.53 : x
  2. Step 2: Convert to fraction form
    93,292.72/128,743.98 = 53,006.53/x
  3. Step 3: Cross multiply
    93,292.72x = 128,743.98 × 53,006.53
  4. Step 4: Simplify right side
    93,292.72x = 6,824,271,997.89
  5. Step 5: Solve for x
    x = 6,824,271,997.89/93,292.72
  6. Step 6: Final answer
    x = 73,149.03

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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.