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Finding the Fourth Proportional to 175,340.60, 262,838.10 and 86,607.80

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Solution

The fourth proportional to 175,340.60, 262,838.10 and 86,607.80 is: 129,826.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,340.60 : 262,838.10 = 86,607.80 : x
  2. Step 2: Convert to fraction form
    175,340.60/262,838.10 = 86,607.80/x
  3. Step 3: Cross multiply
    175,340.60x = 262,838.10 × 86,607.80
  4. Step 4: Simplify right side
    175,340.60x = 22,763,829,597.18
  5. Step 5: Solve for x
    x = 22,763,829,597.18/175,340.60
  6. Step 6: Final answer
    x = 129,826.35

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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.