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Finding the Fourth Proportional to 97,122.77, 145,706.69 and 30,561.16

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Solution

The fourth proportional to 97,122.77, 145,706.69 and 30,561.16 is: 45,848.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,122.77 : 145,706.69 = 30,561.16 : x
  2. Step 2: Convert to fraction form
    97,122.77/145,706.69 = 30,561.16/x
  3. Step 3: Cross multiply
    97,122.77x = 145,706.69 × 30,561.16
  4. Step 4: Simplify right side
    97,122.77x = 4,452,965,313.35
  5. Step 5: Solve for x
    x = 4,452,965,313.35/97,122.77
  6. Step 6: Final answer
    x = 45,848.83

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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.