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Finding the Fourth Proportional to 162,276.70, 243,357.45 and 112,356.70

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Solution

The fourth proportional to 162,276.70, 243,357.45 and 112,356.70 is: 168,495.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,276.70 : 243,357.45 = 112,356.70 : x
  2. Step 2: Convert to fraction form
    162,276.70/243,357.45 = 112,356.70/x
  3. Step 3: Cross multiply
    162,276.70x = 243,357.45 × 112,356.70
  4. Step 4: Simplify right side
    162,276.70x = 27,342,840,002.42
  5. Step 5: Solve for x
    x = 27,342,840,002.42/162,276.70
  6. Step 6: Final answer
    x = 168,495.17

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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.