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Finding the Fourth Proportional to 86,962.86, 130,446.27 and 49,253.49

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Solution

The fourth proportional to 86,962.86, 130,446.27 and 49,253.49 is: 73,881.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,962.86 : 130,446.27 = 49,253.49 : x
  2. Step 2: Convert to fraction form
    86,962.86/130,446.27 = 49,253.49/x
  3. Step 3: Cross multiply
    86,962.86x = 130,446.27 × 49,253.49
  4. Step 4: Simplify right side
    86,962.86x = 6,424,934,054.98
  5. Step 5: Solve for x
    x = 6,424,934,054.98/86,962.86
  6. Step 6: Final answer
    x = 73,881.36

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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.