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Finding the Fourth Proportional to 346,530.68, 519,795.68 and 130,429.76

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Solution

The fourth proportional to 346,530.68, 519,795.68 and 130,429.76 is: 195,644.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,530.68 : 519,795.68 = 130,429.76 : x
  2. Step 2: Convert to fraction form
    346,530.68/519,795.68 = 130,429.76/x
  3. Step 3: Cross multiply
    346,530.68x = 519,795.68 × 130,429.76
  4. Step 4: Simplify right side
    346,530.68x = 67,796,822,866.38
  5. Step 5: Solve for x
    x = 67,796,822,866.38/346,530.68
  6. Step 6: Final answer
    x = 195,644.51

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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.