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Finding the Fourth Proportional to 117,732.21, 162,403.95 and 70,000.95

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Solution

The fourth proportional to 117,732.21, 162,403.95 and 70,000.95 is: 96,561.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,732.21 : 162,403.95 = 70,000.95 : x
  2. Step 2: Convert to fraction form
    117,732.21/162,403.95 = 70,000.95/x
  3. Step 3: Cross multiply
    117,732.21x = 162,403.95 × 70,000.95
  4. Step 4: Simplify right side
    117,732.21x = 11,368,430,783.75
  5. Step 5: Solve for x
    x = 11,368,430,783.75/117,732.21
  6. Step 6: Final answer
    x = 96,561.77

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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.