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Finding the Fourth Proportional to 92,943.58, 128,262.92 and 50,502.11

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Solution

The fourth proportional to 92,943.58, 128,262.92 and 50,502.11 is: 69,693.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,943.58 : 128,262.92 = 50,502.11 : x
  2. Step 2: Convert to fraction form
    92,943.58/128,262.92 = 50,502.11/x
  3. Step 3: Cross multiply
    92,943.58x = 128,262.92 × 50,502.11
  4. Step 4: Simplify right side
    92,943.58x = 6,477,547,900.36
  5. Step 5: Solve for x
    x = 6,477,547,900.36/92,943.58
  6. Step 6: Final answer
    x = 69,693.34

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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.