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Finding the Fourth Proportional to 114,903.60, 172,360.80 and 36,020.40

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Solution

The fourth proportional to 114,903.60, 172,360.80 and 36,020.40 is: 54,032.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,903.60 : 172,360.80 = 36,020.40 : x
  2. Step 2: Convert to fraction form
    114,903.60/172,360.80 = 36,020.40/x
  3. Step 3: Cross multiply
    114,903.60x = 172,360.80 × 36,020.40
  4. Step 4: Simplify right side
    114,903.60x = 6,208,504,960.32
  5. Step 5: Solve for x
    x = 6,208,504,960.32/114,903.60
  6. Step 6: Final answer
    x = 54,032.29

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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.