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Finding the Fourth Proportional to 342,998.41, 514,555.48 and 118,298.74

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Solution

The fourth proportional to 342,998.41, 514,555.48 and 118,298.74 is: 177,468.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,998.41 : 514,555.48 = 118,298.74 : x
  2. Step 2: Convert to fraction form
    342,998.41/514,555.48 = 118,298.74/x
  3. Step 3: Cross multiply
    342,998.41x = 514,555.48 × 118,298.74
  4. Step 4: Simplify right side
    342,998.41x = 60,871,264,944.10
  5. Step 5: Solve for x
    x = 60,871,264,944.10/342,998.41
  6. Step 6: Final answer
    x = 177,468.07

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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.