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Finding the Fourth Proportional to 190,508.80, 285,763.20 and 96,030.40

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Solution

The fourth proportional to 190,508.80, 285,763.20 and 96,030.40 is: 144,045.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,508.80 : 285,763.20 = 96,030.40 : x
  2. Step 2: Convert to fraction form
    190,508.80/285,763.20 = 96,030.40/x
  3. Step 3: Cross multiply
    190,508.80x = 285,763.20 × 96,030.40
  4. Step 4: Simplify right side
    190,508.80x = 27,441,954,401.28
  5. Step 5: Solve for x
    x = 27,441,954,401.28/190,508.80
  6. Step 6: Final answer
    x = 144,045.60

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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.