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Finding the Fourth Proportional to 262,536.40, 393,847.80 and 112,848.40

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Solution

The fourth proportional to 262,536.40, 393,847.80 and 112,848.40 is: 169,291.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,536.40 : 393,847.80 = 112,848.40 : x
  2. Step 2: Convert to fraction form
    262,536.40/393,847.80 = 112,848.40/x
  3. Step 3: Cross multiply
    262,536.40x = 393,847.80 × 112,848.40
  4. Step 4: Simplify right side
    262,536.40x = 44,445,094,073.52
  5. Step 5: Solve for x
    x = 44,445,094,073.52/262,536.40
  6. Step 6: Final answer
    x = 169,291.17

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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.