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Finding the Fourth Proportional to 239,925.13, 360,109.13 and 121,679.51

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Solution

The fourth proportional to 239,925.13, 360,109.13 and 121,679.51 is: 182,631.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,925.13 : 360,109.13 = 121,679.51 : x
  2. Step 2: Convert to fraction form
    239,925.13/360,109.13 = 121,679.51/x
  3. Step 3: Cross multiply
    239,925.13x = 360,109.13 × 121,679.51
  4. Step 4: Simplify right side
    239,925.13x = 43,817,900,075.98
  5. Step 5: Solve for x
    x = 43,817,900,075.98/239,925.13
  6. Step 6: Final answer
    x = 182,631.56

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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.