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Finding the Fourth Proportional to 175,045.20, 262,567.80 and 81,733.20

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Solution

The fourth proportional to 175,045.20, 262,567.80 and 81,733.20 is: 122,599.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,045.20 : 262,567.80 = 81,733.20 : x
  2. Step 2: Convert to fraction form
    175,045.20/262,567.80 = 81,733.20/x
  3. Step 3: Cross multiply
    175,045.20x = 262,567.80 × 81,733.20
  4. Step 4: Simplify right side
    175,045.20x = 21,460,506,510.96
  5. Step 5: Solve for x
    x = 21,460,506,510.96/175,045.20
  6. Step 6: Final answer
    x = 122,599.80

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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.