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Finding the Fourth Proportional to 282,187.57, 423,426.60 and 187,482.95

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Solution

The fourth proportional to 282,187.57, 423,426.60 and 187,482.95 is: 281,320.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,187.57 : 423,426.60 = 187,482.95 : x
  2. Step 2: Convert to fraction form
    282,187.57/423,426.60 = 187,482.95/x
  3. Step 3: Cross multiply
    282,187.57x = 423,426.60 × 187,482.95
  4. Step 4: Simplify right side
    282,187.57x = 79,385,269,135.04
  5. Step 5: Solve for x
    x = 79,385,269,135.04/282,187.57
  6. Step 6: Final answer
    x = 281,320.93

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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.