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Finding the Fourth Proportional to 461,808.60, 692,712.90 and 162,335.40

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Solution

The fourth proportional to 461,808.60, 692,712.90 and 162,335.40 is: 243,503.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,808.60 : 692,712.90 = 162,335.40 : x
  2. Step 2: Convert to fraction form
    461,808.60/692,712.90 = 162,335.40/x
  3. Step 3: Cross multiply
    461,808.60x = 692,712.90 × 162,335.40
  4. Step 4: Simplify right side
    461,808.60x = 112,451,825,706.66
  5. Step 5: Solve for x
    x = 112,451,825,706.66/461,808.60
  6. Step 6: Final answer
    x = 243,503.10

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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.