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Finding the Fourth Proportional to 315,314.80, 472,972.20 and 93,698.80

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Solution

The fourth proportional to 315,314.80, 472,972.20 and 93,698.80 is: 140,548.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,314.80 : 472,972.20 = 93,698.80 : x
  2. Step 2: Convert to fraction form
    315,314.80/472,972.20 = 93,698.80/x
  3. Step 3: Cross multiply
    315,314.80x = 472,972.20 × 93,698.80
  4. Step 4: Simplify right side
    315,314.80x = 44,316,927,573.36
  5. Step 5: Solve for x
    x = 44,316,927,573.36/315,314.80
  6. Step 6: Final answer
    x = 140,548.20

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1.5x scale

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.