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Finding the Fourth Proportional to 105,356.95, 158,035.58 and 43,027.45

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Solution

The fourth proportional to 105,356.95, 158,035.58 and 43,027.45 is: 64,541.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,356.95 : 158,035.58 = 43,027.45 : x
  2. Step 2: Convert to fraction form
    105,356.95/158,035.58 = 43,027.45/x
  3. Step 3: Cross multiply
    105,356.95x = 158,035.58 × 43,027.45
  4. Step 4: Simplify right side
    105,356.95x = 6,799,868,577.76
  5. Step 5: Solve for x
    x = 6,799,868,577.76/105,356.95
  6. Step 6: Final answer
    x = 64,541.24

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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.