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Finding the Fourth Proportional to 561,808.30, 842,712.45 and 162,462.10

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Solution

The fourth proportional to 561,808.30, 842,712.45 and 162,462.10 is: 243,693.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,808.30 : 842,712.45 = 162,462.10 : x
  2. Step 2: Convert to fraction form
    561,808.30/842,712.45 = 162,462.10/x
  3. Step 3: Cross multiply
    561,808.30x = 842,712.45 × 162,462.10
  4. Step 4: Simplify right side
    561,808.30x = 136,908,834,323.15
  5. Step 5: Solve for x
    x = 136,908,834,323.15/561,808.30
  6. Step 6: Final answer
    x = 243,693.15

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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.