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Finding the Fourth Proportional to 374,016.30, 561,024.45 and 121,296.30

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Solution

The fourth proportional to 374,016.30, 561,024.45 and 121,296.30 is: 181,944.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,016.30 : 561,024.45 = 121,296.30 : x
  2. Step 2: Convert to fraction form
    374,016.30/561,024.45 = 121,296.30/x
  3. Step 3: Cross multiply
    374,016.30x = 561,024.45 × 121,296.30
  4. Step 4: Simplify right side
    374,016.30x = 68,050,189,994.54
  5. Step 5: Solve for x
    x = 68,050,189,994.54/374,016.30
  6. Step 6: Final answer
    x = 181,944.45

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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.