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Finding the Fourth Proportional to 82,907.54, 114,430.85 and 52,686.95

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Solution

The fourth proportional to 82,907.54, 114,430.85 and 52,686.95 is: 72,719.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,907.54 : 114,430.85 = 52,686.95 : x
  2. Step 2: Convert to fraction form
    82,907.54/114,430.85 = 52,686.95/x
  3. Step 3: Cross multiply
    82,907.54x = 114,430.85 × 52,686.95
  4. Step 4: Simplify right side
    82,907.54x = 6,029,012,890.20
  5. Step 5: Solve for x
    x = 6,029,012,890.20/82,907.54
  6. Step 6: Final answer
    x = 72,719.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.