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Finding the Fourth Proportional to 118,368.72, 177,553.76 and 39,482.72

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Solution

The fourth proportional to 118,368.72, 177,553.76 and 39,482.72 is: 59,224.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,368.72 : 177,553.76 = 39,482.72 : x
  2. Step 2: Convert to fraction form
    118,368.72/177,553.76 = 39,482.72/x
  3. Step 3: Cross multiply
    118,368.72x = 177,553.76 × 39,482.72
  4. Step 4: Simplify right side
    118,368.72x = 7,010,304,305.84
  5. Step 5: Solve for x
    x = 7,010,304,305.84/118,368.72
  6. Step 6: Final answer
    x = 59,224.30

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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.