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Finding the Fourth Proportional to 282,490.60, 423,390.30 and 124,551.40

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Solution

The fourth proportional to 282,490.60, 423,390.30 and 124,551.40 is: 186,674.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,490.60 : 423,390.30 = 124,551.40 : x
  2. Step 2: Convert to fraction form
    282,490.60/423,390.30 = 124,551.40/x
  3. Step 3: Cross multiply
    282,490.60x = 423,390.30 × 124,551.40
  4. Step 4: Simplify right side
    282,490.60x = 52,733,854,611.42
  5. Step 5: Solve for x
    x = 52,733,854,611.42/282,490.60
  6. Step 6: Final answer
    x = 186,674.72

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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.