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Finding the Fourth Proportional to 133,082.48, 183,656.60 and 72,655.67

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Solution

The fourth proportional to 133,082.48, 183,656.60 and 72,655.67 is: 100,266.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,082.48 : 183,656.60 = 72,655.67 : x
  2. Step 2: Convert to fraction form
    133,082.48/183,656.60 = 72,655.67/x
  3. Step 3: Cross multiply
    133,082.48x = 183,656.60 × 72,655.67
  4. Step 4: Simplify right side
    133,082.48x = 13,343,693,322.92
  5. Step 5: Solve for x
    x = 13,343,693,322.92/133,082.48
  6. Step 6: Final answer
    x = 100,266.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.