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Finding the Fourth Proportional to 289,148.76, 399,271.52 and 181,898.28

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Solution

The fourth proportional to 289,148.76, 399,271.52 and 181,898.28 is: 251,174.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,148.76 : 399,271.52 = 181,898.28 : x
  2. Step 2: Convert to fraction form
    289,148.76/399,271.52 = 181,898.28/x
  3. Step 3: Cross multiply
    289,148.76x = 399,271.52 × 181,898.28
  4. Step 4: Simplify right side
    289,148.76x = 72,626,802,740.99
  5. Step 5: Solve for x
    x = 72,626,802,740.99/289,148.76
  6. Step 6: Final answer
    x = 251,174.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.