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Finding the Fourth Proportional to 105,796.65, 145,990.08 and 60,465.63

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Solution

The fourth proportional to 105,796.65, 145,990.08 and 60,465.63 is: 83,437.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,796.65 : 145,990.08 = 60,465.63 : x
  2. Step 2: Convert to fraction form
    105,796.65/145,990.08 = 60,465.63/x
  3. Step 3: Cross multiply
    105,796.65x = 145,990.08 × 60,465.63
  4. Step 4: Simplify right side
    105,796.65x = 8,827,382,160.95
  5. Step 5: Solve for x
    x = 8,827,382,160.95/105,796.65
  6. Step 6: Final answer
    x = 83,437.26

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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.