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Finding the Fourth Proportional to 232,712.40, 349,068.60 and 83,121.60

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Solution

The fourth proportional to 232,712.40, 349,068.60 and 83,121.60 is: 124,682.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,712.40 : 349,068.60 = 83,121.60 : x
  2. Step 2: Convert to fraction form
    232,712.40/349,068.60 = 83,121.60/x
  3. Step 3: Cross multiply
    232,712.40x = 349,068.60 × 83,121.60
  4. Step 4: Simplify right side
    232,712.40x = 29,015,140,541.76
  5. Step 5: Solve for x
    x = 29,015,140,541.76/232,712.40
  6. Step 6: Final answer
    x = 124,682.40

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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.