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Finding the Fourth Proportional to 107,245.56, 148,005.87 and 61,925.45

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Solution

The fourth proportional to 107,245.56, 148,005.87 and 61,925.45 is: 85,461.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,245.56 : 148,005.87 = 61,925.45 : x
  2. Step 2: Convert to fraction form
    107,245.56/148,005.87 = 61,925.45/x
  3. Step 3: Cross multiply
    107,245.56x = 148,005.87 × 61,925.45
  4. Step 4: Simplify right side
    107,245.56x = 9,165,330,102.39
  5. Step 5: Solve for x
    x = 9,165,330,102.39/107,245.56
  6. Step 6: Final answer
    x = 85,461.16

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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.