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Finding the Fourth Proportional to 153,603, 230,406.12 and 42,795

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Solution

The fourth proportional to 153,603, 230,406.12 and 42,795 is: 64,192.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,603 : 230,406.12 = 42,795 : x
  2. Step 2: Convert to fraction form
    153,603/230,406.12 = 42,795/x
  3. Step 3: Cross multiply
    153,603x = 230,406.12 × 42,795
  4. Step 4: Simplify right side
    153,603x = 9,860,229,905.40
  5. Step 5: Solve for x
    x = 9,860,229,905.40/153,603
  6. Step 6: Final answer
    x = 64,192.95

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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.