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Finding the Fourth Proportional to 114,986.92, 158,681.90 and 64,685.92

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Solution

The fourth proportional to 114,986.92, 158,681.90 and 64,685.92 is: 89,266.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,986.92 : 158,681.90 = 64,685.92 : x
  2. Step 2: Convert to fraction form
    114,986.92/158,681.90 = 64,685.92/x
  3. Step 3: Cross multiply
    114,986.92x = 158,681.90 × 64,685.92
  4. Step 4: Simplify right side
    114,986.92x = 10,264,484,365.42
  5. Step 5: Solve for x
    x = 10,264,484,365.42/114,986.92
  6. Step 6: Final answer
    x = 89,266.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.