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Finding the Fourth Proportional to 70,610.40, 106,088.40 and 53,114.40

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Solution

The fourth proportional to 70,610.40, 106,088.40 and 53,114.40 is: 79,801.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,610.40 : 106,088.40 = 53,114.40 : x
  2. Step 2: Convert to fraction form
    70,610.40/106,088.40 = 53,114.40/x
  3. Step 3: Cross multiply
    70,610.40x = 106,088.40 × 53,114.40
  4. Step 4: Simplify right side
    70,610.40x = 5,634,821,712.96
  5. Step 5: Solve for x
    x = 5,634,821,712.96/70,610.40
  6. Step 6: Final answer
    x = 79,801.58

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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.