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Finding the Fourth Proportional to 236,999.20, 355,498.80 and 153,018.40

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Solution

The fourth proportional to 236,999.20, 355,498.80 and 153,018.40 is: 229,527.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,999.20 : 355,498.80 = 153,018.40 : x
  2. Step 2: Convert to fraction form
    236,999.20/355,498.80 = 153,018.40/x
  3. Step 3: Cross multiply
    236,999.20x = 355,498.80 × 153,018.40
  4. Step 4: Simplify right side
    236,999.20x = 54,397,857,577.92
  5. Step 5: Solve for x
    x = 54,397,857,577.92/236,999.20
  6. Step 6: Final answer
    x = 229,527.60

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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.