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Finding the Fourth Proportional to 145,937.09, 218,928.22 and 61,697.50

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Solution

The fourth proportional to 145,937.09, 218,928.22 and 61,697.50 is: 92,555.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,937.09 : 218,928.22 = 61,697.50 : x
  2. Step 2: Convert to fraction form
    145,937.09/218,928.22 = 61,697.50/x
  3. Step 3: Cross multiply
    145,937.09x = 218,928.22 × 61,697.50
  4. Step 4: Simplify right side
    145,937.09x = 13,507,323,151.89
  5. Step 5: Solve for x
    x = 13,507,323,151.89/145,937.09
  6. Step 6: Final answer
    x = 92,555.79

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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.