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Finding the Fourth Proportional to 117,790.01, 162,513.53 and 66,798.74

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Solution

The fourth proportional to 117,790.01, 162,513.53 and 66,798.74 is: 92,161.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,790.01 : 162,513.53 = 66,798.74 : x
  2. Step 2: Convert to fraction form
    117,790.01/162,513.53 = 66,798.74/x
  3. Step 3: Cross multiply
    117,790.01x = 162,513.53 × 66,798.74
  4. Step 4: Simplify right side
    117,790.01x = 10,855,697,890.39
  5. Step 5: Solve for x
    x = 10,855,697,890.39/117,790.01
  6. Step 6: Final answer
    x = 92,161.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.