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Finding the Fourth Proportional to 104,672.38, 144,386.39 and 65,848.47

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Solution

The fourth proportional to 104,672.38, 144,386.39 and 65,848.47 is: 90,832.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,672.38 : 144,386.39 = 65,848.47 : x
  2. Step 2: Convert to fraction form
    104,672.38/144,386.39 = 65,848.47/x
  3. Step 3: Cross multiply
    104,672.38x = 144,386.39 × 65,848.47
  4. Step 4: Simplify right side
    104,672.38x = 9,507,622,148.39
  5. Step 5: Solve for x
    x = 9,507,622,148.39/104,672.38
  6. Step 6: Final answer
    x = 90,832.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.