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Finding the Fourth Proportional to 114,895.60, 172,348.80 and 36,012.40

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Solution

The fourth proportional to 114,895.60, 172,348.80 and 36,012.40 is: 54,020.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,895.60 : 172,348.80 = 36,012.40 : x
  2. Step 2: Convert to fraction form
    114,895.60/172,348.80 = 36,012.40/x
  3. Step 3: Cross multiply
    114,895.60x = 172,348.80 × 36,012.40
  4. Step 4: Simplify right side
    114,895.60x = 6,206,693,925.12
  5. Step 5: Solve for x
    x = 6,206,693,925.12/114,895.60
  6. Step 6: Final answer
    x = 54,020.29

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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.