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Finding the Fourth Proportional to 156,940.60, 235,410.90 and 112,473.40

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Solution

The fourth proportional to 156,940.60, 235,410.90 and 112,473.40 is: 168,710.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,940.60 : 235,410.90 = 112,473.40 : x
  2. Step 2: Convert to fraction form
    156,940.60/235,410.90 = 112,473.40/x
  3. Step 3: Cross multiply
    156,940.60x = 235,410.90 × 112,473.40
  4. Step 4: Simplify right side
    156,940.60x = 26,477,464,320.06
  5. Step 5: Solve for x
    x = 26,477,464,320.06/156,940.60
  6. Step 6: Final answer
    x = 168,710.10

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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.