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Finding the Fourth Proportional to 495,461.40, 743,148.90 and 163,037.40

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Solution

The fourth proportional to 495,461.40, 743,148.90 and 163,037.40 is: 244,541.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,461.40 : 743,148.90 = 163,037.40 : x
  2. Step 2: Convert to fraction form
    495,461.40/743,148.90 = 163,037.40/x
  3. Step 3: Cross multiply
    495,461.40x = 743,148.90 × 163,037.40
  4. Step 4: Simplify right side
    495,461.40x = 121,161,064,468.86
  5. Step 5: Solve for x
    x = 121,161,064,468.86/495,461.40
  6. Step 6: Final answer
    x = 244,541.88

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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.