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Finding the Fourth Proportional to 107,315.70, 148,102.58 and 61,995.58

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Solution

The fourth proportional to 107,315.70, 148,102.58 and 61,995.58 is: 85,557.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,315.70 : 148,102.58 = 61,995.58 : x
  2. Step 2: Convert to fraction form
    107,315.70/148,102.58 = 61,995.58/x
  3. Step 3: Cross multiply
    107,315.70x = 148,102.58 × 61,995.58
  4. Step 4: Simplify right side
    107,315.70x = 9,181,705,346.60
  5. Step 5: Solve for x
    x = 9,181,705,346.60/107,315.70
  6. Step 6: Final answer
    x = 85,557.89

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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.