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Finding the Fourth Proportional to 79,844.40, 119,689.80 and 62,065.20

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Solution

The fourth proportional to 79,844.40, 119,689.80 and 62,065.20 is: 93,038.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,844.40 : 119,689.80 = 62,065.20 : x
  2. Step 2: Convert to fraction form
    79,844.40/119,689.80 = 62,065.20/x
  3. Step 3: Cross multiply
    79,844.40x = 119,689.80 × 62,065.20
  4. Step 4: Simplify right side
    79,844.40x = 7,428,571,374.96
  5. Step 5: Solve for x
    x = 7,428,571,374.96/79,844.40
  6. Step 6: Final answer
    x = 93,038.10

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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.