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Finding the Fourth Proportional to 124,359.65, 171,567.60 and 76,529.96

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Solution

The fourth proportional to 124,359.65, 171,567.60 and 76,529.96 is: 105,581.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,359.65 : 171,567.60 = 76,529.96 : x
  2. Step 2: Convert to fraction form
    124,359.65/171,567.60 = 76,529.96/x
  3. Step 3: Cross multiply
    124,359.65x = 171,567.60 × 76,529.96
  4. Step 4: Simplify right side
    124,359.65x = 13,130,062,459.40
  5. Step 5: Solve for x
    x = 13,130,062,459.40/124,359.65
  6. Step 6: Final answer
    x = 105,581.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.