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Finding the Fourth Proportional to 124,530.60, 186,795.90 and 114,907.80

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Solution

The fourth proportional to 124,530.60, 186,795.90 and 114,907.80 is: 172,361.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,530.60 : 186,795.90 = 114,907.80 : x
  2. Step 2: Convert to fraction form
    124,530.60/186,795.90 = 114,907.80/x
  3. Step 3: Cross multiply
    124,530.60x = 186,795.90 × 114,907.80
  4. Step 4: Simplify right side
    124,530.60x = 21,464,305,918.02
  5. Step 5: Solve for x
    x = 21,464,305,918.02/124,530.60
  6. Step 6: Final answer
    x = 172,361.70

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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.