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Finding the Fourth Proportional to 139,603.51, 209,325.81 and 95,283.95

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Solution

The fourth proportional to 139,603.51, 209,325.81 and 95,283.95 is: 142,871.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,603.51 : 209,325.81 = 95,283.95 : x
  2. Step 2: Convert to fraction form
    139,603.51/209,325.81 = 95,283.95/x
  3. Step 3: Cross multiply
    139,603.51x = 209,325.81 × 95,283.95
  4. Step 4: Simplify right side
    139,603.51x = 19,945,390,537.06
  5. Step 5: Solve for x
    x = 19,945,390,537.06/139,603.51
  6. Step 6: Final answer
    x = 142,871.70

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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.