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Finding the Fourth Proportional to 58,711.11, 87,955.94 and 45,498.89

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Solution

The fourth proportional to 58,711.11, 87,955.94 and 45,498.89 is: 68,162.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,711.11 : 87,955.94 = 45,498.89 : x
  2. Step 2: Convert to fraction form
    58,711.11/87,955.94 = 45,498.89/x
  3. Step 3: Cross multiply
    58,711.11x = 87,955.94 × 45,498.89
  4. Step 4: Simplify right side
    58,711.11x = 4,001,896,971.63
  5. Step 5: Solve for x
    x = 4,001,896,971.63/58,711.11
  6. Step 6: Final answer
    x = 68,162.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.