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Finding the Fourth Proportional to 153,388.40, 230,090.40 and 48,208.40

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Solution

The fourth proportional to 153,388.40, 230,090.40 and 48,208.40 is: 72,315.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,388.40 : 230,090.40 = 48,208.40 : x
  2. Step 2: Convert to fraction form
    153,388.40/230,090.40 = 48,208.40/x
  3. Step 3: Cross multiply
    153,388.40x = 230,090.40 × 48,208.40
  4. Step 4: Simplify right side
    153,388.40x = 11,092,290,039.36
  5. Step 5: Solve for x
    x = 11,092,290,039.36/153,388.40
  6. Step 6: Final answer
    x = 72,315.05

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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.