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Finding the Fourth Proportional to 125,212.20, 187,472.70 and 97,564.20

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Solution

The fourth proportional to 125,212.20, 187,472.70 and 97,564.20 is: 146,077.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,212.20 : 187,472.70 = 97,564.20 : x
  2. Step 2: Convert to fraction form
    125,212.20/187,472.70 = 97,564.20/x
  3. Step 3: Cross multiply
    125,212.20x = 187,472.70 × 97,564.20
  4. Step 4: Simplify right side
    125,212.20x = 18,290,623,997.34
  5. Step 5: Solve for x
    x = 18,290,623,997.34/125,212.20
  6. Step 6: Final answer
    x = 146,077.01

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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.