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Finding the Fourth Proportional to 114,417.20, 171,625.80 and 103,530.80

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Solution

The fourth proportional to 114,417.20, 171,625.80 and 103,530.80 is: 155,296.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,417.20 : 171,625.80 = 103,530.80 : x
  2. Step 2: Convert to fraction form
    114,417.20/171,625.80 = 103,530.80/x
  3. Step 3: Cross multiply
    114,417.20x = 171,625.80 × 103,530.80
  4. Step 4: Simplify right side
    114,417.20x = 17,768,556,374.64
  5. Step 5: Solve for x
    x = 17,768,556,374.64/114,417.20
  6. Step 6: Final answer
    x = 155,296.20

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1.5x scale

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.