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Finding the Fourth Proportional to 185,871.84, 256,506.96 and 100,994.40

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Solution

The fourth proportional to 185,871.84, 256,506.96 and 100,994.40 is: 139,374.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,871.84 : 256,506.96 = 100,994.40 : x
  2. Step 2: Convert to fraction form
    185,871.84/256,506.96 = 100,994.40/x
  3. Step 3: Cross multiply
    185,871.84x = 256,506.96 × 100,994.40
  4. Step 4: Simplify right side
    185,871.84x = 25,905,766,521.02
  5. Step 5: Solve for x
    x = 25,905,766,521.02/185,871.84
  6. Step 6: Final answer
    x = 139,374.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.