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Finding the Fourth Proportional to 166,681.60, 230,128.16 and 148,745.76

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Solution

The fourth proportional to 166,681.60, 230,128.16 and 148,745.76 is: 205,365.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,681.60 : 230,128.16 = 148,745.76 : x
  2. Step 2: Convert to fraction form
    166,681.60/230,128.16 = 148,745.76/x
  3. Step 3: Cross multiply
    166,681.60x = 230,128.16 × 148,745.76
  4. Step 4: Simplify right side
    166,681.60x = 34,230,588,056.60
  5. Step 5: Solve for x
    x = 34,230,588,056.60/166,681.60
  6. Step 6: Final answer
    x = 205,365.13

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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.