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Finding the Fourth Proportional to 346,687.37, 520,057.17 and 103,509.19

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Solution

The fourth proportional to 346,687.37, 520,057.17 and 103,509.19 is: 155,271.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,687.37 : 520,057.17 = 103,509.19 : x
  2. Step 2: Convert to fraction form
    346,687.37/520,057.17 = 103,509.19/x
  3. Step 3: Cross multiply
    346,687.37x = 520,057.17 × 103,509.19
  4. Step 4: Simplify right side
    346,687.37x = 53,830,696,420.39
  5. Step 5: Solve for x
    x = 53,830,696,420.39/346,687.37
  6. Step 6: Final answer
    x = 155,271.58

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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.