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Finding the Fourth Proportional to 92,510.61, 138,852.93 and 87,454.54

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Solution

The fourth proportional to 92,510.61, 138,852.93 and 87,454.54 is: 131,264.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,510.61 : 138,852.93 = 87,454.54 : x
  2. Step 2: Convert to fraction form
    92,510.61/138,852.93 = 87,454.54/x
  3. Step 3: Cross multiply
    92,510.61x = 138,852.93 × 87,454.54
  4. Step 4: Simplify right side
    92,510.61x = 12,143,318,841.28
  5. Step 5: Solve for x
    x = 12,143,318,841.28/92,510.61
  6. Step 6: Final answer
    x = 131,264.07

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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.