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Finding the Fourth Proportional to 303,440.80, 455,161.20 and 93,051.40

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Solution

The fourth proportional to 303,440.80, 455,161.20 and 93,051.40 is: 139,577.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,440.80 : 455,161.20 = 93,051.40 : x
  2. Step 2: Convert to fraction form
    303,440.80/455,161.20 = 93,051.40/x
  3. Step 3: Cross multiply
    303,440.80x = 455,161.20 × 93,051.40
  4. Step 4: Simplify right side
    303,440.80x = 42,353,386,885.68
  5. Step 5: Solve for x
    x = 42,353,386,885.68/303,440.80
  6. Step 6: Final answer
    x = 139,577.10

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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.