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Finding the Fourth Proportional to 343,875.60, 515,813.40 and 166,400.55

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Solution

The fourth proportional to 343,875.60, 515,813.40 and 166,400.55 is: 249,600.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,875.60 : 515,813.40 = 166,400.55 : x
  2. Step 2: Convert to fraction form
    343,875.60/515,813.40 = 166,400.55/x
  3. Step 3: Cross multiply
    343,875.60x = 515,813.40 × 166,400.55
  4. Step 4: Simplify right side
    343,875.60x = 85,831,633,457.37
  5. Step 5: Solve for x
    x = 85,831,633,457.37/343,875.60
  6. Step 6: Final answer
    x = 249,600.83

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1.5x scale

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.