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Finding the Fourth Proportional to 101,203.30, 151,805.40 and 42,038.92

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Solution

The fourth proportional to 101,203.30, 151,805.40 and 42,038.92 is: 63,058.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,203.30 : 151,805.40 = 42,038.92 : x
  2. Step 2: Convert to fraction form
    101,203.30/151,805.40 = 42,038.92/x
  3. Step 3: Cross multiply
    101,203.30x = 151,805.40 × 42,038.92
  4. Step 4: Simplify right side
    101,203.30x = 6,381,735,066.17
  5. Step 5: Solve for x
    x = 6,381,735,066.17/101,203.30
  6. Step 6: Final answer
    x = 63,058.57

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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.