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Finding the Fourth Proportional to 260,966.80, 391,603.80 and 94,733.20

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Solution

The fourth proportional to 260,966.80, 391,603.80 and 94,733.20 is: 142,155.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,966.80 : 391,603.80 = 94,733.20 : x
  2. Step 2: Convert to fraction form
    260,966.80/391,603.80 = 94,733.20/x
  3. Step 3: Cross multiply
    260,966.80x = 391,603.80 × 94,733.20
  4. Step 4: Simplify right side
    260,966.80x = 37,097,881,106.16
  5. Step 5: Solve for x
    x = 37,097,881,106.16/260,966.80
  6. Step 6: Final answer
    x = 142,155.56

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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.