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Finding the Fourth Proportional to 245,710.97, 368,566.15 and 77,246.00

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Solution

The fourth proportional to 245,710.97, 368,566.15 and 77,246.00 is: 115,868.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,710.97 : 368,566.15 = 77,246.00 : x
  2. Step 2: Convert to fraction form
    245,710.97/368,566.15 = 77,246.00/x
  3. Step 3: Cross multiply
    245,710.97x = 368,566.15 × 77,246.00
  4. Step 4: Simplify right side
    245,710.97x = 28,470,262,387.10
  5. Step 5: Solve for x
    x = 28,470,262,387.10/245,710.97
  6. Step 6: Final answer
    x = 115,868.91

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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.