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Finding the Fourth Proportional to 117,803.88, 162,515.78 and 70,030.12

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Solution

The fourth proportional to 117,803.88, 162,515.78 and 70,030.12 is: 96,609.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,803.88 : 162,515.78 = 70,030.12 : x
  2. Step 2: Convert to fraction form
    117,803.88/162,515.78 = 70,030.12/x
  3. Step 3: Cross multiply
    117,803.88x = 162,515.78 × 70,030.12
  4. Step 4: Simplify right side
    117,803.88x = 11,380,999,575.29
  5. Step 5: Solve for x
    x = 11,380,999,575.29/117,803.88
  6. Step 6: Final answer
    x = 96,609.72

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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.