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Finding the Fourth Proportional to 190,430.84, 262,790.80 and 104,390.00

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Solution

The fourth proportional to 190,430.84, 262,790.80 and 104,390.00 is: 144,056.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,430.84 : 262,790.80 = 104,390.00 : x
  2. Step 2: Convert to fraction form
    190,430.84/262,790.80 = 104,390.00/x
  3. Step 3: Cross multiply
    190,430.84x = 262,790.80 × 104,390.00
  4. Step 4: Simplify right side
    190,430.84x = 27,432,732,500.73
  5. Step 5: Solve for x
    x = 27,432,732,500.73/190,430.84
  6. Step 6: Final answer
    x = 144,056.15

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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.