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Finding the Fourth Proportional to 162,031.20, 243,119.70 and 56,925.60

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Solution

The fourth proportional to 162,031.20, 243,119.70 and 56,925.60 is: 85,414.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,031.20 : 243,119.70 = 56,925.60 : x
  2. Step 2: Convert to fraction form
    162,031.20/243,119.70 = 56,925.60/x
  3. Step 3: Cross multiply
    162,031.20x = 243,119.70 × 56,925.60
  4. Step 4: Simplify right side
    162,031.20x = 13,839,734,794.32
  5. Step 5: Solve for x
    x = 13,839,734,794.32/162,031.20
  6. Step 6: Final answer
    x = 85,414.01

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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.