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Finding the Fourth Proportional to 140,841.60, 210,873.60 and 109,737.60

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Solution

The fourth proportional to 140,841.60, 210,873.60 and 109,737.60 is: 164,303.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,841.60 : 210,873.60 = 109,737.60 : x
  2. Step 2: Convert to fraction form
    140,841.60/210,873.60 = 109,737.60/x
  3. Step 3: Cross multiply
    140,841.60x = 210,873.60 × 109,737.60
  4. Step 4: Simplify right side
    140,841.60x = 23,140,762,767.36
  5. Step 5: Solve for x
    x = 23,140,762,767.36/140,841.60
  6. Step 6: Final answer
    x = 164,303.46

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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.