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Finding the Fourth Proportional to 101,779.54, 152,527.08 and 86,708.14

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Solution

The fourth proportional to 101,779.54, 152,527.08 and 86,708.14 is: 129,941.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,779.54 : 152,527.08 = 86,708.14 : x
  2. Step 2: Convert to fraction form
    101,779.54/152,527.08 = 86,708.14/x
  3. Step 3: Cross multiply
    101,779.54x = 152,527.08 × 86,708.14
  4. Step 4: Simplify right side
    101,779.54x = 13,225,339,406.43
  5. Step 5: Solve for x
    x = 13,225,339,406.43/101,779.54
  6. Step 6: Final answer
    x = 129,941.04

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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.