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Finding the Fourth Proportional to 105,959.16, 146,237.64 and 68,342.76

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Solution

The fourth proportional to 105,959.16, 146,237.64 and 68,342.76 is: 94,322.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,959.16 : 146,237.64 = 68,342.76 : x
  2. Step 2: Convert to fraction form
    105,959.16/146,237.64 = 68,342.76/x
  3. Step 3: Cross multiply
    105,959.16x = 146,237.64 × 68,342.76
  4. Step 4: Simplify right side
    105,959.16x = 9,994,283,933.49
  5. Step 5: Solve for x
    x = 9,994,283,933.49/105,959.16
  6. Step 6: Final answer
    x = 94,322.04

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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.