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Finding the Fourth Proportional to 303,787.80, 455,681.70 and 93,425.40

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Solution

The fourth proportional to 303,787.80, 455,681.70 and 93,425.40 is: 140,138.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,787.80 : 455,681.70 = 93,425.40 : x
  2. Step 2: Convert to fraction form
    303,787.80/455,681.70 = 93,425.40/x
  3. Step 3: Cross multiply
    303,787.80x = 455,681.70 × 93,425.40
  4. Step 4: Simplify right side
    303,787.80x = 42,572,245,095.18
  5. Step 5: Solve for x
    x = 42,572,245,095.18/303,787.80
  6. Step 6: Final answer
    x = 140,138.10

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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.