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Finding the Fourth Proportional to 155,855.80, 233,783.70 and 154,689.40

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Solution

The fourth proportional to 155,855.80, 233,783.70 and 154,689.40 is: 232,034.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,855.80 : 233,783.70 = 154,689.40 : x
  2. Step 2: Convert to fraction form
    155,855.80/233,783.70 = 154,689.40/x
  3. Step 3: Cross multiply
    155,855.80x = 233,783.70 × 154,689.40
  4. Step 4: Simplify right side
    155,855.80x = 36,163,860,282.78
  5. Step 5: Solve for x
    x = 36,163,860,282.78/155,855.80
  6. Step 6: Final answer
    x = 232,034.10

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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.