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Finding the Fourth Proportional to 156,969.70, 235,454.55 and 83,241.70

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Solution

The fourth proportional to 156,969.70, 235,454.55 and 83,241.70 is: 124,862.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,969.70 : 235,454.55 = 83,241.70 : x
  2. Step 2: Convert to fraction form
    156,969.70/235,454.55 = 83,241.70/x
  3. Step 3: Cross multiply
    156,969.70x = 235,454.55 × 83,241.70
  4. Step 4: Simplify right side
    156,969.70x = 19,599,637,014.74
  5. Step 5: Solve for x
    x = 19,599,637,014.74/156,969.70
  6. Step 6: Final answer
    x = 124,862.55

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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.