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Finding the Fourth Proportional to 105,685.82, 145,856.48 and 60,370.58

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Solution

The fourth proportional to 105,685.82, 145,856.48 and 60,370.58 is: 83,317.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,685.82 : 145,856.48 = 60,370.58 : x
  2. Step 2: Convert to fraction form
    105,685.82/145,856.48 = 60,370.58/x
  3. Step 3: Cross multiply
    105,685.82x = 145,856.48 × 60,370.58
  4. Step 4: Simplify right side
    105,685.82x = 8,805,440,294.36
  5. Step 5: Solve for x
    x = 8,805,440,294.36/105,685.82
  6. Step 6: Final answer
    x = 83,317.14

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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.