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Finding the Fourth Proportional to 282,368.66, 423,428.64 and 132,651.50

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Solution

The fourth proportional to 282,368.66, 423,428.64 and 132,651.50 is: 198,918.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,368.66 : 423,428.64 = 132,651.50 : x
  2. Step 2: Convert to fraction form
    282,368.66/423,428.64 = 132,651.50/x
  3. Step 3: Cross multiply
    282,368.66x = 423,428.64 × 132,651.50
  4. Step 4: Simplify right side
    282,368.66x = 56,168,442,121.82
  5. Step 5: Solve for x
    x = 56,168,442,121.82/282,368.66
  6. Step 6: Final answer
    x = 198,918.83

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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.