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Finding the Fourth Proportional to 107,302.60, 160,889.90 and 65,779.40

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Solution

The fourth proportional to 107,302.60, 160,889.90 and 65,779.40 is: 98,629.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,302.60 : 160,889.90 = 65,779.40 : x
  2. Step 2: Convert to fraction form
    107,302.60/160,889.90 = 65,779.40/x
  3. Step 3: Cross multiply
    107,302.60x = 160,889.90 × 65,779.40
  4. Step 4: Simplify right side
    107,302.60x = 10,583,241,088.06
  5. Step 5: Solve for x
    x = 10,583,241,088.06/107,302.60
  6. Step 6: Final answer
    x = 98,629.87

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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.