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Finding the Fourth Proportional to 145,707.66, 218,561.85 and 40,526.64

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Solution

The fourth proportional to 145,707.66, 218,561.85 and 40,526.64 is: 60,790.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,707.66 : 218,561.85 = 40,526.64 : x
  2. Step 2: Convert to fraction form
    145,707.66/218,561.85 = 40,526.64/x
  3. Step 3: Cross multiply
    145,707.66x = 218,561.85 × 40,526.64
  4. Step 4: Simplify right side
    145,707.66x = 8,857,577,412.68
  5. Step 5: Solve for x
    x = 8,857,577,412.68/145,707.66
  6. Step 6: Final answer
    x = 60,790.06

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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.