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Finding the Fourth Proportional to 61,133.72, 91,666.02 and 36,177.08

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Solution

The fourth proportional to 61,133.72, 91,666.02 and 36,177.08 is: 54,245.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,133.72 : 91,666.02 = 36,177.08 : x
  2. Step 2: Convert to fraction form
    61,133.72/91,666.02 = 36,177.08/x
  3. Step 3: Cross multiply
    61,133.72x = 91,666.02 × 36,177.08
  4. Step 4: Simplify right side
    61,133.72x = 3,316,208,938.82
  5. Step 5: Solve for x
    x = 3,316,208,938.82/61,133.72
  6. Step 6: Final answer
    x = 54,245.17

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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.