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Finding the Fourth Proportional to 93,302.02, 128,655.15 and 63,034.78

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Solution

The fourth proportional to 93,302.02, 128,655.15 and 63,034.78 is: 86,919.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,302.02 : 128,655.15 = 63,034.78 : x
  2. Step 2: Convert to fraction form
    93,302.02/128,655.15 = 63,034.78/x
  3. Step 3: Cross multiply
    93,302.02x = 128,655.15 × 63,034.78
  4. Step 4: Simplify right side
    93,302.02x = 8,109,749,076.12
  5. Step 5: Solve for x
    x = 8,109,749,076.12/93,302.02
  6. Step 6: Final answer
    x = 86,919.33

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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.