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Finding the Fourth Proportional to 84,907.57, 117,172.98 and 53,095.09

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Solution

The fourth proportional to 84,907.57, 117,172.98 and 53,095.09 is: 73,271.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,907.57 : 117,172.98 = 53,095.09 : x
  2. Step 2: Convert to fraction form
    84,907.57/117,172.98 = 53,095.09/x
  3. Step 3: Cross multiply
    84,907.57x = 117,172.98 × 53,095.09
  4. Step 4: Simplify right side
    84,907.57x = 6,221,309,918.67
  5. Step 5: Solve for x
    x = 6,221,309,918.67/84,907.57
  6. Step 6: Final answer
    x = 73,271.56

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1.5x scale

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.