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Finding the Fourth Proportional to 315,061.64, 472,618.06 and 93,445

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Solution

The fourth proportional to 315,061.64, 472,618.06 and 93,445 is: 140,175.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,061.64 : 472,618.06 = 93,445 : x
  2. Step 2: Convert to fraction form
    315,061.64/472,618.06 = 93,445/x
  3. Step 3: Cross multiply
    315,061.64x = 472,618.06 × 93,445
  4. Step 4: Simplify right side
    315,061.64x = 44,163,794,616.70
  5. Step 5: Solve for x
    x = 44,163,794,616.70/315,061.64
  6. Step 6: Final answer
    x = 140,175.09

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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.