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Finding the Fourth Proportional to 368,776.56, 553,203.29 and 141,071.74

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Solution

The fourth proportional to 368,776.56, 553,203.29 and 141,071.74 is: 211,622.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,776.56 : 553,203.29 = 141,071.74 : x
  2. Step 2: Convert to fraction form
    368,776.56/553,203.29 = 141,071.74/x
  3. Step 3: Cross multiply
    368,776.56x = 553,203.29 × 141,071.74
  4. Step 4: Simplify right side
    368,776.56x = 78,041,347,832.91
  5. Step 5: Solve for x
    x = 78,041,347,832.91/368,776.56
  6. Step 6: Final answer
    x = 211,622.31

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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.