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Finding the Fourth Proportional to 175,073.80, 262,437.90 and 86,254.60

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Solution

The fourth proportional to 175,073.80, 262,437.90 and 86,254.60 is: 129,296.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,073.80 : 262,437.90 = 86,254.60 : x
  2. Step 2: Convert to fraction form
    175,073.80/262,437.90 = 86,254.60/x
  3. Step 3: Cross multiply
    175,073.80x = 262,437.90 × 86,254.60
  4. Step 4: Simplify right side
    175,073.80x = 22,636,476,089.34
  5. Step 5: Solve for x
    x = 22,636,476,089.34/175,073.80
  6. Step 6: Final answer
    x = 129,296.77

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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.