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Finding the Fourth Proportional to 134,978.04, 202,495.28 and 40,208.04

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Solution

The fourth proportional to 134,978.04, 202,495.28 and 40,208.04 is: 60,320.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,978.04 : 202,495.28 = 40,208.04 : x
  2. Step 2: Convert to fraction form
    134,978.04/202,495.28 = 40,208.04/x
  3. Step 3: Cross multiply
    134,978.04x = 202,495.28 × 40,208.04
  4. Step 4: Simplify right side
    134,978.04x = 8,141,938,117.01
  5. Step 5: Solve for x
    x = 8,141,938,117.01/134,978.04
  6. Step 6: Final answer
    x = 60,320.46

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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.