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Finding the Fourth Proportional to 342,966.63, 514,476.55 and 103,061.79

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Solution

The fourth proportional to 342,966.63, 514,476.55 and 103,061.79 is: 154,600.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,966.63 : 514,476.55 = 103,061.79 : x
  2. Step 2: Convert to fraction form
    342,966.63/514,476.55 = 103,061.79/x
  3. Step 3: Cross multiply
    342,966.63x = 514,476.55 × 103,061.79
  4. Step 4: Simplify right side
    342,966.63x = 53,022,874,156.02
  5. Step 5: Solve for x
    x = 53,022,874,156.02/342,966.63
  6. Step 6: Final answer
    x = 154,600.68

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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.