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Finding the Fourth Proportional to 330,143.32, 495,070.77 and 116,840.34

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Solution

The fourth proportional to 330,143.32, 495,070.77 and 116,840.34 is: 175,209.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,143.32 : 495,070.77 = 116,840.34 : x
  2. Step 2: Convert to fraction form
    330,143.32/495,070.77 = 116,840.34/x
  3. Step 3: Cross multiply
    330,143.32x = 495,070.77 × 116,840.34
  4. Step 4: Simplify right side
    330,143.32x = 57,844,237,090.86
  5. Step 5: Solve for x
    x = 57,844,237,090.86/330,143.32
  6. Step 6: Final answer
    x = 175,209.47

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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.