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Finding the Fourth Proportional to 107,237.96, 148,009.40 and 61,945.20

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Solution

The fourth proportional to 107,237.96, 148,009.40 and 61,945.20 is: 85,496.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,237.96 : 148,009.40 = 61,945.20 : x
  2. Step 2: Convert to fraction form
    107,237.96/148,009.40 = 61,945.20/x
  3. Step 3: Cross multiply
    107,237.96x = 148,009.40 × 61,945.20
  4. Step 4: Simplify right side
    107,237.96x = 9,168,471,884.88
  5. Step 5: Solve for x
    x = 9,168,471,884.88/107,237.96
  6. Step 6: Final answer
    x = 85,496.52

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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.