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Finding the Fourth Proportional to 303,374.20, 455,061.30 and 134,894.20

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Solution

The fourth proportional to 303,374.20, 455,061.30 and 134,894.20 is: 202,341.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,374.20 : 455,061.30 = 134,894.20 : x
  2. Step 2: Convert to fraction form
    303,374.20/455,061.30 = 134,894.20/x
  3. Step 3: Cross multiply
    303,374.20x = 455,061.30 × 134,894.20
  4. Step 4: Simplify right side
    303,374.20x = 61,385,130,014.46
  5. Step 5: Solve for x
    x = 61,385,130,014.46/303,374.20
  6. Step 6: Final answer
    x = 202,341.30

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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.