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Finding the Fourth Proportional to 452,775.35, 679,261.04 and 137,256.05

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Solution

The fourth proportional to 452,775.35, 679,261.04 and 137,256.05 is: 205,913.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,775.35 : 679,261.04 = 137,256.05 : x
  2. Step 2: Convert to fraction form
    452,775.35/679,261.04 = 137,256.05/x
  3. Step 3: Cross multiply
    452,775.35x = 679,261.04 × 137,256.05
  4. Step 4: Simplify right side
    452,775.35x = 93,232,683,186.71
  5. Step 5: Solve for x
    x = 93,232,683,186.71/452,775.35
  6. Step 6: Final answer
    x = 205,913.78

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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.