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Finding the Fourth Proportional to 123,800.58, 185,678.91 and 56,316.90

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Solution

The fourth proportional to 123,800.58, 185,678.91 and 56,316.90 is: 84,465.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,800.58 : 185,678.91 = 56,316.90 : x
  2. Step 2: Convert to fraction form
    123,800.58/185,678.91 = 56,316.90/x
  3. Step 3: Cross multiply
    123,800.58x = 185,678.91 × 56,316.90
  4. Step 4: Simplify right side
    123,800.58x = 10,456,860,606.58
  5. Step 5: Solve for x
    x = 10,456,860,606.58/123,800.58
  6. Step 6: Final answer
    x = 84,465.36

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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.