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Finding the Fourth Proportional to 236,000.40, 353,417.40 and 156,685.20

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Solution

The fourth proportional to 236,000.40, 353,417.40 and 156,685.20 is: 234,640.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,000.40 : 353,417.40 = 156,685.20 : x
  2. Step 2: Convert to fraction form
    236,000.40/353,417.40 = 156,685.20/x
  3. Step 3: Cross multiply
    236,000.40x = 353,417.40 × 156,685.20
  4. Step 4: Simplify right side
    236,000.40x = 55,375,276,002.48
  5. Step 5: Solve for x
    x = 55,375,276,002.48/236,000.40
  6. Step 6: Final answer
    x = 234,640.60

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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.