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Finding the Fourth Proportional to 358,881.15, 495,255.58 and 197,736.15

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Solution

The fourth proportional to 358,881.15, 495,255.58 and 197,736.15 is: 272,875.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,881.15 : 495,255.58 = 197,736.15 : x
  2. Step 2: Convert to fraction form
    358,881.15/495,255.58 = 197,736.15/x
  3. Step 3: Cross multiply
    358,881.15x = 495,255.58 × 197,736.15
  4. Step 4: Simplify right side
    358,881.15x = 97,929,931,655.22
  5. Step 5: Solve for x
    x = 97,929,931,655.22/358,881.15
  6. Step 6: Final answer
    x = 272,875.66

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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.