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Finding the Fourth Proportional to 175,417.20, 262,866.60 and 148,978.80

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Solution

The fourth proportional to 175,417.20, 262,866.60 and 148,978.80 is: 223,248.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,417.20 : 262,866.60 = 148,978.80 : x
  2. Step 2: Convert to fraction form
    175,417.20/262,866.60 = 148,978.80/x
  3. Step 3: Cross multiply
    175,417.20x = 262,866.60 × 148,978.80
  4. Step 4: Simplify right side
    175,417.20x = 39,161,550,628.08
  5. Step 5: Solve for x
    x = 39,161,550,628.08/175,417.20
  6. Step 6: Final answer
    x = 223,248.07

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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.