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Finding the Fourth Proportional to 91,332.94, 136,975.65 and 38,715.34

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Solution

The fourth proportional to 91,332.94, 136,975.65 and 38,715.34 is: 58,062.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,332.94 : 136,975.65 = 38,715.34 : x
  2. Step 2: Convert to fraction form
    91,332.94/136,975.65 = 38,715.34/x
  3. Step 3: Cross multiply
    91,332.94x = 136,975.65 × 38,715.34
  4. Step 4: Simplify right side
    91,332.94x = 5,303,058,861.47
  5. Step 5: Solve for x
    x = 5,303,058,861.47/91,332.94
  6. Step 6: Final answer
    x = 58,062.94

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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.