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Finding the Fourth Proportional to 315,084.40, 472,463.40 and 93,439.60

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Solution

The fourth proportional to 315,084.40, 472,463.40 and 93,439.60 is: 140,111.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,084.40 : 472,463.40 = 93,439.60 : x
  2. Step 2: Convert to fraction form
    315,084.40/472,463.40 = 93,439.60/x
  3. Step 3: Cross multiply
    315,084.40x = 472,463.40 × 93,439.60
  4. Step 4: Simplify right side
    315,084.40x = 44,146,791,110.64
  5. Step 5: Solve for x
    x = 44,146,791,110.64/315,084.40
  6. Step 6: Final answer
    x = 140,111.00

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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.