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Finding the Fourth Proportional to 173,666.40, 260,630.80 and 127,039.56

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Solution

The fourth proportional to 173,666.40, 260,630.80 and 127,039.56 is: 190,655.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,666.40 : 260,630.80 = 127,039.56 : x
  2. Step 2: Convert to fraction form
    173,666.40/260,630.80 = 127,039.56/x
  3. Step 3: Cross multiply
    173,666.40x = 260,630.80 × 127,039.56
  4. Step 4: Simplify right side
    173,666.40x = 33,110,422,154.45
  5. Step 5: Solve for x
    x = 33,110,422,154.45/173,666.40
  6. Step 6: Final answer
    x = 190,655.31

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1.5x scale

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.