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Finding the Fourth Proportional to 133,571.01, 200,038.50 and 77,292.54

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Solution

The fourth proportional to 133,571.01, 200,038.50 and 77,292.54 is: 115,754.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,571.01 : 200,038.50 = 77,292.54 : x
  2. Step 2: Convert to fraction form
    133,571.01/200,038.50 = 77,292.54/x
  3. Step 3: Cross multiply
    133,571.01x = 200,038.50 × 77,292.54
  4. Step 4: Simplify right side
    133,571.01x = 15,461,483,762.79
  5. Step 5: Solve for x
    x = 15,461,483,762.79/133,571.01
  6. Step 6: Final answer
    x = 115,754.79

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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.