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Finding the Fourth Proportional to 317,468.16, 475,839.36 and 130,248

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Solution

The fourth proportional to 317,468.16, 475,839.36 and 130,248 is: 195,223.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,468.16 : 475,839.36 = 130,248 : x
  2. Step 2: Convert to fraction form
    317,468.16/475,839.36 = 130,248/x
  3. Step 3: Cross multiply
    317,468.16x = 475,839.36 × 130,248
  4. Step 4: Simplify right side
    317,468.16x = 61,977,124,961.28
  5. Step 5: Solve for x
    x = 61,977,124,961.28/317,468.16
  6. Step 6: Final answer
    x = 195,223.12

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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.