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Finding the Fourth Proportional to 374,726.16, 517,017.96 and 223,768.08

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Solution

The fourth proportional to 374,726.16, 517,017.96 and 223,768.08 is: 308,737.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,726.16 : 517,017.96 = 223,768.08 : x
  2. Step 2: Convert to fraction form
    374,726.16/517,017.96 = 223,768.08/x
  3. Step 3: Cross multiply
    374,726.16x = 517,017.96 × 223,768.08
  4. Step 4: Simplify right side
    374,726.16x = 115,692,116,234.72
  5. Step 5: Solve for x
    x = 115,692,116,234.72/374,726.16
  6. Step 6: Final answer
    x = 308,737.76

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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.