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Finding the Fourth Proportional to 127,523.70, 191,285.55 and 104,973.30

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Solution

The fourth proportional to 127,523.70, 191,285.55 and 104,973.30 is: 157,459.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,523.70 : 191,285.55 = 104,973.30 : x
  2. Step 2: Convert to fraction form
    127,523.70/191,285.55 = 104,973.30/x
  3. Step 3: Cross multiply
    127,523.70x = 191,285.55 × 104,973.30
  4. Step 4: Simplify right side
    127,523.70x = 20,079,875,425.82
  5. Step 5: Solve for x
    x = 20,079,875,425.82/127,523.70
  6. Step 6: Final answer
    x = 157,459.95

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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.