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Finding the Fourth Proportional to 250,931.32, 376,411.59 and 71,001.68

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Solution

The fourth proportional to 250,931.32, 376,411.59 and 71,001.68 is: 106,506.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,931.32 : 376,411.59 = 71,001.68 : x
  2. Step 2: Convert to fraction form
    250,931.32/376,411.59 = 71,001.68/x
  3. Step 3: Cross multiply
    250,931.32x = 376,411.59 × 71,001.68
  4. Step 4: Simplify right side
    250,931.32x = 26,725,855,261.47
  5. Step 5: Solve for x
    x = 26,725,855,261.47/250,931.32
  6. Step 6: Final answer
    x = 106,506.66

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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.