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Finding the Fourth Proportional to 116,518.80, 174,821.40 and 46,448.40

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Solution

The fourth proportional to 116,518.80, 174,821.40 and 46,448.40 is: 69,689.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,518.80 : 174,821.40 = 46,448.40 : x
  2. Step 2: Convert to fraction form
    116,518.80/174,821.40 = 46,448.40/x
  3. Step 3: Cross multiply
    116,518.80x = 174,821.40 × 46,448.40
  4. Step 4: Simplify right side
    116,518.80x = 8,120,174,315.76
  5. Step 5: Solve for x
    x = 8,120,174,315.76/116,518.80
  6. Step 6: Final answer
    x = 69,689.82

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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.