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Finding the Fourth Proportional to 105,755.93, 145,933.95 and 60,424.89

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Solution

The fourth proportional to 105,755.93, 145,933.95 and 60,424.89 is: 83,381.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,755.93 : 145,933.95 = 60,424.89 : x
  2. Step 2: Convert to fraction form
    105,755.93/145,933.95 = 60,424.89/x
  3. Step 3: Cross multiply
    105,755.93x = 145,933.95 × 60,424.89
  4. Step 4: Simplify right side
    105,755.93x = 8,818,042,555.36
  5. Step 5: Solve for x
    x = 8,818,042,555.36/105,755.93
  6. Step 6: Final answer
    x = 83,381.07

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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.