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Finding the Fourth Proportional to 315,088.40, 472,469.40 and 93,443.60

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Solution

The fourth proportional to 315,088.40, 472,469.40 and 93,443.60 is: 140,117.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,088.40 : 472,469.40 = 93,443.60 : x
  2. Step 2: Convert to fraction form
    315,088.40/472,469.40 = 93,443.60/x
  3. Step 3: Cross multiply
    315,088.40x = 472,469.40 × 93,443.60
  4. Step 4: Simplify right side
    315,088.40x = 44,149,241,625.84
  5. Step 5: Solve for x
    x = 44,149,241,625.84/315,088.40
  6. Step 6: Final answer
    x = 140,117.00

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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.