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Finding the Fourth Proportional to 255,352.64, 352,373.87 and 140,641.19

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Solution

The fourth proportional to 255,352.64, 352,373.87 and 140,641.19 is: 194,077.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,352.64 : 352,373.87 = 140,641.19 : x
  2. Step 2: Convert to fraction form
    255,352.64/352,373.87 = 140,641.19/x
  3. Step 3: Cross multiply
    255,352.64x = 352,373.87 × 140,641.19
  4. Step 4: Simplify right side
    255,352.64x = 49,558,280,312.84
  5. Step 5: Solve for x
    x = 49,558,280,312.84/255,352.64
  6. Step 6: Final answer
    x = 194,077.81

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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.