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Finding the Fourth Proportional to 409,051.06, 613,618.48 and 156,543.95

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Solution

The fourth proportional to 409,051.06, 613,618.48 and 156,543.95 is: 234,831.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,051.06 : 613,618.48 = 156,543.95 : x
  2. Step 2: Convert to fraction form
    409,051.06/613,618.48 = 156,543.95/x
  3. Step 3: Cross multiply
    409,051.06x = 613,618.48 × 156,543.95
  4. Step 4: Simplify right side
    409,051.06x = 96,058,260,652.20
  5. Step 5: Solve for x
    x = 96,058,260,652.20/409,051.06
  6. Step 6: Final answer
    x = 234,831.96

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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.