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Finding the Fourth Proportional to 109,710.51, 151,399.63 and 59,409.51

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Solution

The fourth proportional to 109,710.51, 151,399.63 and 59,409.51 is: 81,984.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,710.51 : 151,399.63 = 59,409.51 : x
  2. Step 2: Convert to fraction form
    109,710.51/151,399.63 = 59,409.51/x
  3. Step 3: Cross multiply
    109,710.51x = 151,399.63 × 59,409.51
  4. Step 4: Simplify right side
    109,710.51x = 8,994,577,338.99
  5. Step 5: Solve for x
    x = 8,994,577,338.99/109,710.51
  6. Step 6: Final answer
    x = 81,984.65

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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.