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Finding the Fourth Proportional to 162,712.80, 243,690.12 and 158,228.24

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Solution

The fourth proportional to 162,712.80, 243,690.12 and 158,228.24 is: 236,973.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,712.80 : 243,690.12 = 158,228.24 : x
  2. Step 2: Convert to fraction form
    162,712.80/243,690.12 = 158,228.24/x
  3. Step 3: Cross multiply
    162,712.80x = 243,690.12 × 158,228.24
  4. Step 4: Simplify right side
    162,712.80x = 38,558,657,574.54
  5. Step 5: Solve for x
    x = 38,558,657,574.54/162,712.80
  6. Step 6: Final answer
    x = 236,973.72

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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.