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Finding the Fourth Proportional to 93,636.52, 129,218.63 and 51,197.79

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Solution

The fourth proportional to 93,636.52, 129,218.63 and 51,197.79 is: 70,653.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,636.52 : 129,218.63 = 51,197.79 : x
  2. Step 2: Convert to fraction form
    93,636.52/129,218.63 = 51,197.79/x
  3. Step 3: Cross multiply
    93,636.52x = 129,218.63 × 51,197.79
  4. Step 4: Simplify right side
    93,636.52x = 6,615,708,282.83
  5. Step 5: Solve for x
    x = 6,615,708,282.83/93,636.52
  6. Step 6: Final answer
    x = 70,653.08

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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.