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Finding the Fourth Proportional to 374,068.48, 516,050.04 and 223,078

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Solution

The fourth proportional to 374,068.48, 516,050.04 and 223,078 is: 307,749.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,068.48 : 516,050.04 = 223,078 : x
  2. Step 2: Convert to fraction form
    374,068.48/516,050.04 = 223,078/x
  3. Step 3: Cross multiply
    374,068.48x = 516,050.04 × 223,078
  4. Step 4: Simplify right side
    374,068.48x = 115,119,410,823.12
  5. Step 5: Solve for x
    x = 115,119,410,823.12/374,068.48
  6. Step 6: Final answer
    x = 307,749.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.