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Finding the Fourth Proportional to 92,598.48, 138,870.27 and 39,289.74

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Solution

The fourth proportional to 92,598.48, 138,870.27 and 39,289.74 is: 58,922.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,598.48 : 138,870.27 = 39,289.74 : x
  2. Step 2: Convert to fraction form
    92,598.48/138,870.27 = 39,289.74/x
  3. Step 3: Cross multiply
    92,598.48x = 138,870.27 × 39,289.74
  4. Step 4: Simplify right side
    92,598.48x = 5,456,176,802.03
  5. Step 5: Solve for x
    x = 5,456,176,802.03/92,598.48
  6. Step 6: Final answer
    x = 58,922.96

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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.