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Finding the Fourth Proportional to 358,871.60, 495,244.17 and 197,723.18

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Solution

The fourth proportional to 358,871.60, 495,244.17 and 197,723.18 is: 272,858.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,871.60 : 495,244.17 = 197,723.18 : x
  2. Step 2: Convert to fraction form
    358,871.60/495,244.17 = 197,723.18/x
  3. Step 3: Cross multiply
    358,871.60x = 495,244.17 × 197,723.18
  4. Step 4: Simplify right side
    358,871.60x = 97,921,249,692.64
  5. Step 5: Solve for x
    x = 97,921,249,692.64/358,871.60
  6. Step 6: Final answer
    x = 272,858.74

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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.