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Finding the Fourth Proportional to 315,482.55, 473,353.43 and 115,898.55

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Solution

The fourth proportional to 315,482.55, 473,353.43 and 115,898.55 is: 173,895.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,482.55 : 473,353.43 = 115,898.55 : x
  2. Step 2: Convert to fraction form
    315,482.55/473,353.43 = 115,898.55/x
  3. Step 3: Cross multiply
    315,482.55x = 473,353.43 × 115,898.55
  4. Step 4: Simplify right side
    315,482.55x = 54,860,975,595.03
  5. Step 5: Solve for x
    x = 54,860,975,595.03/315,482.55
  6. Step 6: Final answer
    x = 173,895.44

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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.