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Finding the Fourth Proportional to 468,482.72, 702,711.32 and 131,526.16

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Solution

The fourth proportional to 468,482.72, 702,711.32 and 131,526.16 is: 197,285.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,482.72 : 702,711.32 = 131,526.16 : x
  2. Step 2: Convert to fraction form
    468,482.72/702,711.32 = 131,526.16/x
  3. Step 3: Cross multiply
    468,482.72x = 702,711.32 × 131,526.16
  4. Step 4: Simplify right side
    468,482.72x = 92,424,921,508.13
  5. Step 5: Solve for x
    x = 92,424,921,508.13/468,482.72
  6. Step 6: Final answer
    x = 197,285.66

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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.