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Finding the Fourth Proportional to 340,147.79, 510,295.49 and 103,484.32

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Solution

The fourth proportional to 340,147.79, 510,295.49 and 103,484.32 is: 155,248.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,147.79 : 510,295.49 = 103,484.32 : x
  2. Step 2: Convert to fraction form
    340,147.79/510,295.49 = 103,484.32/x
  3. Step 3: Cross multiply
    340,147.79x = 510,295.49 × 103,484.32
  4. Step 4: Simplify right side
    340,147.79x = 52,807,579,230.24
  5. Step 5: Solve for x
    x = 52,807,579,230.24/340,147.79
  6. Step 6: Final answer
    x = 155,248.93

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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.