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Finding the Fourth Proportional to 124,637.94, 187,011.72 and 65,459.88

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Solution

The fourth proportional to 124,637.94, 187,011.72 and 65,459.88 is: 98,218.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,637.94 : 187,011.72 = 65,459.88 : x
  2. Step 2: Convert to fraction form
    124,637.94/187,011.72 = 65,459.88/x
  3. Step 3: Cross multiply
    124,637.94x = 187,011.72 × 65,459.88
  4. Step 4: Simplify right side
    124,637.94x = 12,241,764,749.79
  5. Step 5: Solve for x
    x = 12,241,764,749.79/124,637.94
  6. Step 6: Final answer
    x = 98,218.61

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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.