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Finding the Fourth Proportional to 156,746.60, 235,119.90 and 155,871.80

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Solution

The fourth proportional to 156,746.60, 235,119.90 and 155,871.80 is: 233,807.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,746.60 : 235,119.90 = 155,871.80 : x
  2. Step 2: Convert to fraction form
    156,746.60/235,119.90 = 155,871.80/x
  3. Step 3: Cross multiply
    156,746.60x = 235,119.90 × 155,871.80
  4. Step 4: Simplify right side
    156,746.60x = 36,648,562,028.82
  5. Step 5: Solve for x
    x = 36,648,562,028.82/156,746.60
  6. Step 6: Final answer
    x = 233,807.70

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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.