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Finding the Fourth Proportional to 88,457.40, 122,112.90 and 52,147.71

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Solution

The fourth proportional to 88,457.40, 122,112.90 and 52,147.71 is: 71,988.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,457.40 : 122,112.90 = 52,147.71 : x
  2. Step 2: Convert to fraction form
    88,457.40/122,112.90 = 52,147.71/x
  3. Step 3: Cross multiply
    88,457.40x = 122,112.90 × 52,147.71
  4. Step 4: Simplify right side
    88,457.40x = 6,367,908,096.46
  5. Step 5: Solve for x
    x = 6,367,908,096.46/88,457.40
  6. Step 6: Final answer
    x = 71,988.42

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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.