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Finding the Fourth Proportional to 114,090.72, 171,138.72 and 39,210.24

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Solution

The fourth proportional to 114,090.72, 171,138.72 and 39,210.24 is: 58,816.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,090.72 : 171,138.72 = 39,210.24 : x
  2. Step 2: Convert to fraction form
    114,090.72/171,138.72 = 39,210.24/x
  3. Step 3: Cross multiply
    114,090.72x = 171,138.72 × 39,210.24
  4. Step 4: Simplify right side
    114,090.72x = 6,710,390,284.49
  5. Step 5: Solve for x
    x = 6,710,390,284.49/114,090.72
  6. Step 6: Final answer
    x = 58,816.27

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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.