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Finding the Fourth Proportional to 97,233.51, 145,847.43 and 53,139.51

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Solution

The fourth proportional to 97,233.51, 145,847.43 and 53,139.51 is: 79,707.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,233.51 : 145,847.43 = 53,139.51 : x
  2. Step 2: Convert to fraction form
    97,233.51/145,847.43 = 53,139.51/x
  3. Step 3: Cross multiply
    97,233.51x = 145,847.43 × 53,139.51
  4. Step 4: Simplify right side
    97,233.51x = 7,750,260,964.96
  5. Step 5: Solve for x
    x = 7,750,260,964.96/97,233.51
  6. Step 6: Final answer
    x = 79,707.72

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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.