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Finding the Fourth Proportional to 69,505.66, 104,259.06 and 45,510.19

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Solution

The fourth proportional to 69,505.66, 104,259.06 and 45,510.19 is: 68,265.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,505.66 : 104,259.06 = 45,510.19 : x
  2. Step 2: Convert to fraction form
    69,505.66/104,259.06 = 45,510.19/x
  3. Step 3: Cross multiply
    69,505.66x = 104,259.06 × 45,510.19
  4. Step 4: Simplify right side
    69,505.66x = 4,744,849,629.82
  5. Step 5: Solve for x
    x = 4,744,849,629.82/69,505.66
  6. Step 6: Final answer
    x = 68,265.66

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1.5x scale

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.