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Finding the Fourth Proportional to 190,661.95, 285,994.59 and 48,507.35

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Solution

The fourth proportional to 190,661.95, 285,994.59 and 48,507.35 is: 72,761.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,661.95 : 285,994.59 = 48,507.35 : x
  2. Step 2: Convert to fraction form
    190,661.95/285,994.59 = 48,507.35/x
  3. Step 3: Cross multiply
    190,661.95x = 285,994.59 × 48,507.35
  4. Step 4: Simplify right side
    190,661.95x = 13,872,839,675.24
  5. Step 5: Solve for x
    x = 13,872,839,675.24/190,661.95
  6. Step 6: Final answer
    x = 72,761.45

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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.