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Finding the Fourth Proportional to 106,666.80, 159,945.48 and 62,380.08

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Solution

The fourth proportional to 106,666.80, 159,945.48 and 62,380.08 is: 93,538.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,666.80 : 159,945.48 = 62,380.08 : x
  2. Step 2: Convert to fraction form
    106,666.80/159,945.48 = 62,380.08/x
  3. Step 3: Cross multiply
    106,666.80x = 159,945.48 × 62,380.08
  4. Step 4: Simplify right side
    106,666.80x = 9,977,411,838.04
  5. Step 5: Solve for x
    x = 9,977,411,838.04/106,666.80
  6. Step 6: Final answer
    x = 93,538.12

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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.