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Finding the Fourth Proportional to 86,872.79, 130,267.45 and 36,925.82

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Solution

The fourth proportional to 86,872.79, 130,267.45 and 36,925.82 is: 55,370.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,872.79 : 130,267.45 = 36,925.82 : x
  2. Step 2: Convert to fraction form
    86,872.79/130,267.45 = 36,925.82/x
  3. Step 3: Cross multiply
    86,872.79x = 130,267.45 × 36,925.82
  4. Step 4: Simplify right side
    86,872.79x = 4,810,231,666.91
  5. Step 5: Solve for x
    x = 4,810,231,666.91/86,872.79
  6. Step 6: Final answer
    x = 55,370.98

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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.