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Finding the Fourth Proportional to 107,810.76, 148,779.01 and 60,065.79

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Solution

The fourth proportional to 107,810.76, 148,779.01 and 60,065.79 is: 82,890.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,810.76 : 148,779.01 = 60,065.79 : x
  2. Step 2: Convert to fraction form
    107,810.76/148,779.01 = 60,065.79/x
  3. Step 3: Cross multiply
    107,810.76x = 148,779.01 × 60,065.79
  4. Step 4: Simplify right side
    107,810.76x = 8,936,528,771.07
  5. Step 5: Solve for x
    x = 8,936,528,771.07/107,810.76
  6. Step 6: Final answer
    x = 82,890.88

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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.