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Finding the Fourth Proportional to 250,612.32, 375,931.20 and 73,132.80

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Solution

The fourth proportional to 250,612.32, 375,931.20 and 73,132.80 is: 109,702.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,612.32 : 375,931.20 = 73,132.80 : x
  2. Step 2: Convert to fraction form
    250,612.32/375,931.20 = 73,132.80/x
  3. Step 3: Cross multiply
    250,612.32x = 375,931.20 × 73,132.80
  4. Step 4: Simplify right side
    250,612.32x = 27,492,901,263.36
  5. Step 5: Solve for x
    x = 27,492,901,263.36/250,612.32
  6. Step 6: Final answer
    x = 109,702.91

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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.