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Finding the Fourth Proportional to 342,988.15, 514,501.67 and 106,364.47

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Solution

The fourth proportional to 342,988.15, 514,501.67 and 106,364.47 is: 159,552.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,988.15 : 514,501.67 = 106,364.47 : x
  2. Step 2: Convert to fraction form
    342,988.15/514,501.67 = 106,364.47/x
  3. Step 3: Cross multiply
    342,988.15x = 514,501.67 × 106,364.47
  4. Step 4: Simplify right side
    342,988.15x = 54,724,696,911.84
  5. Step 5: Solve for x
    x = 54,724,696,911.84/342,988.15
  6. Step 6: Final answer
    x = 159,552.73

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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.