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Finding the Fourth Proportional to 156,984.60, 235,088.10 and 125,880.60

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Solution

The fourth proportional to 156,984.60, 235,088.10 and 125,880.60 is: 188,509.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,984.60 : 235,088.10 = 125,880.60 : x
  2. Step 2: Convert to fraction form
    156,984.60/235,088.10 = 125,880.60/x
  3. Step 3: Cross multiply
    156,984.60x = 235,088.10 × 125,880.60
  4. Step 4: Simplify right side
    156,984.60x = 29,593,031,080.86
  5. Step 5: Solve for x
    x = 29,593,031,080.86/156,984.60
  6. Step 6: Final answer
    x = 188,509.13

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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.